Try entering "Serial Peripheral Interface" in your browser.

Christopher Moore <m...@sevenwoodsaudio.com> wrote:

I believe Motorola initiated the SPI standard, but an Internet search fails to come up with a good reference, neither the specification (or standard) itself nor a guide. For example, I found a reference to "Mode 0" but wonder what the other modes are like. Any pointers? Chris Moore ----------------------------------- Seven Woods Audio, Inc. Christopher Moore Concepts, Products, Circuits for Audio Analog/Digital m...@SevenWoodsAudio.com http://www.SevenWoodsAudio.com

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3

More information: Motorola App Note AN1241 "Interfacing the MC68HC705J1A to 9356/9396 Serial EEPROMs" essentially describes a bit-bang to Microwire method.

I once connected a 68HC11 to a DSP56009 via SPI. The 68HC11 reference manual talks about SPI at length.

ATMEL and Microchip both offer SPI interfaced memories--check their sites for SPI app notes.

Christopher Moore <m...@sevenwoodsaudio.com> wrote:

I believe Motorola initiated the SPI standard, but an Internet search fails to come up with a good reference, neither the specification (or standard) itself nor a guide. For example, I found a reference to "Mode 0" but wonder what the other modes are like. Any pointers? Chris Moore ----------------------------------- Seven Woods Audio, Inc. Christopher Moore Concepts, Products, Circuits for Audio Analog/Digital m...@SevenWoodsAudio.com http://www.SevenWoodsAudio.com

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3

An old Motorola App note (An991) is titled "Using the Serial Peripheral Interface to Communicate Between Multiple Microcontrollers." If you can't find an internet copy, I might be able to fax you a paper copy.

Another app note (AN1226) is titled "Using 9346 Series Serial EEPROMS with 6805 Microcontrollers".

National Semiconductor called their version of SPI "Microwire", and I think thre are some National App notes about that. As I recall, there were some slight timing differences between SPI and Microwire.

I'll look around for more data.

Christopher Moore <m...@sevenwoodsaudio.com> wrote:

I believe Motorola initiated the SPI standard, but an Internet search fails to come up with a good reference, neither the specification (or standard) itself nor a guide. For example, I found a reference to "Mode 0" but wonder what the other modes are like. Any pointers? Chris Moore ----------------------------------- Seven Woods Audio, Inc. Christopher Moore Concepts, Products, Circuits for Audio Analog/Digital m...@SevenWoodsAudio.com http://www.SevenWoodsAudio.com

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3

Chris—

One place to try is the 68HC11 reference manual, Section 8.

http://e-www.motorola.com/files/microcontrollers/doc/ref_manual/M68HC11RM.pdf

Best regards,

Kerry Berland
k...@siliconengines-ltd.com
Silicon Engines
2101 Oxford Road
847-803-6860
Fax 847-803-6870
Des Plaines, IL 60018 USA

-----Original Message-----
From: Christopher Moore [mailto:m...@sevenwoodsaudio.com]
Sent: Monday, March 15, 2004 11:05 AM
To: m...@yahoogroups.com
Subject: [motoroladsp] Seek detailed reference for SPI

I believe Motorola initiated the SPI standard, but an Internet search
fails to come up with a good reference, neither the specification (or
standard) itself nor a guide. For example, I found a reference to
"Mode 0" but wonder what the other modes are like.

Any pointers?

Chris Moore
-----------------------------------
Seven Woods Audio, Inc. Christopher Moore
Concepts, Products, Circuits for Audio Analog/Digital
m...@SevenWoodsAudio.com
http://www.SevenWoodsAudio.com

_____________________________________
Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group.

_____________________________________
About this discussion group:

To Join: m...@yahoogroups.com

To Post: m...@yahoogroups.com

To Leave: m...@yahoogroups.com

Archives: http://www.yahoogroups.com/group/motoroladsp

More Groups: http://www.dsprelated.com/groups.php3

Chris—

One place to look is the 68HC11 reference manual, Section 8.

http://e-www.motorola.com/files/microcontrollers/doc/ref_manual/M68HC11RM.pdf

Best regards,

Kerry Berland
k...@siliconengines-ltd.com
Silicon Engines
2101 Oxford Road
847-803-6860
Fax 847-803-6870
Des Plaines, IL 60018 USA

-----Original Message-----
From: Christopher Moore [mailto:m...@sevenwoodsaudio.com]
Sent: Monday, March 15, 2004 11:05 AM
To: m...@yahoogroups.com
Subject: [motoroladsp] Seek detailed reference for SPI

I believe Motorola initiated the SPI standard, but an Internet search
fails to come up with a good reference, neither the specification (or
standard) itself nor a guide. For example, I found a reference to
"Mode 0" but wonder what the other modes are like.

Any pointers?

Chris Moore
-----------------------------------
Seven Woods Audio, Inc. Christopher Moore
Concepts, Products, Circuits for Audio Analog/Digital
m...@SevenWoodsAudio.com
http://www.SevenWoodsAudio.com

_____________________________________
Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group.

_____________________________________
About this discussion group:

To Join: m...@yahoogroups.com

To Post: m...@yahoogroups.com

To Leave: m...@yahoogroups.com

Archives: http://www.yahoogroups.com/group/motoroladsp

More Groups: http://www.dsprelated.com/groups.php3

I believe Motorola initiated the SPI standard, but an Internet search fails to come up with a good reference, neither the specification (or standard) itself nor a guide. For example, I found a reference to "Mode 0" but wonder what the other modes are like. Any pointers? Chris Moore ----------------------------------- Seven Woods Audio, Inc. Christopher Moore Concepts, Products, Circuits for Audio Analog/Digital http://www.SevenWoodsAudio.com