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2.17 Peripheral Expansion Connectors
The EVM board contains a group of Peripheral Expansion Connectors used to gain access
to the resources of the 56F8346. The following signal groups have Expansion Connectors:
• External Memory Address Bus/General Purpose Port A (bits 0-7)/General Purpose
Port E (bits2&3)/General Purpose Port B (bit 0)
• External Memory Data Bus/General Purpose Port F (bits 0-7)
• External Memory Control/General Purpose Port D (bits 0 and 1)
• Encoder #0/Timer Channel A
• Encoder #1/Serial Peripheral Interface Port #1/Timer Channel B/General Purpose
Port C (bits 0-3)
• Timer Channel C
• Timer Channel D
• A/D Input Port A
• A/D Input Port B
• Serial Communications Port 0/General Purpose Port E (bits 0 and 1)
• Serial Communications Port 1/General Purpose Port D (bits 6 and 7)
• Serial Peripheral Interface Port #0/General Purpose Port E (bits 4-7)
• PWM Port A
• PWM Port B
2.17.1 Address Bus Expansion Connector
The Address bus expansion connector contains the 56F8346's 17 external memory
address signal lines. Address lines A6 & A7 can also be used as GPIO Port E lines (bits 2
and 3). Address lines A8 - A15, can also be used as GPIO Port A lines (bits 0-7). Address
line A16 is an MPIO signal, which can be configured as A16 or GPIO Port B bit 0. Refer
to
Table 2-14
for the Address bus connector information.
Table 2-14. External Memory Address Bus Connector Description
MOTOROLA
Freescale Semiconductor, Inc.
J7
Pin #
Signal
1
A0
Technical Summary
For More Information On This Product,
Go to: www.freescale.com
Peripheral Expansion Connectors
Pin #
Signal
2
A1
2-25
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