MC68HC708MP16CFU

Manufacturer Part NumberMC68HC708MP16CFU
ManufacturerFreescale Semiconductor, Inc
MC68HC708MP16CFU datasheet
 


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Input/Output (I/O) Ports
15.2 Introduction
Thirty-seven bidirectional input-output (I/O) pins and seven input pins
form eight parallel ports. All I/O pins are programmable as inputs or
outputs.
NOTE:
Connect any unused I/O pins to an appropriate logic level, either V
V
. Although the I/O ports do not require termination for proper
SS
operation, termination reduces excess current consumption and the
possibility of electrostatic damage.
Addr.
Name
Read:
Port A Data Register
$0000
Write:
(PTA)
Reset:
Read:
Port B Data Register
$0001
Write:
(PTB)
Reset:
Read:
Port C Data Register
$0002
Write:
(PTC)
Reset:
Read:
Port D Data Register
$0003
Write:
(PTD)
Reset:
Read:
Port E Data Register
$0004
Write:
(PTE)
Reset:
Read:
Port F Data Register
$0005
Write:
(PTF)
Reset:
Figure 15-1. I/O Port Register Summary
Technical Data
318
Bit 7
6
5
4
PTA7
PTA6
PTA5
PTA4
Unaffected by reset
PTB7
PTB6
PTB5
PTB4
Unaffected by reset
0
PTC6
PTC5
PTC4
Unaffected by reset
0
PTD6
PTD5
PTD4
Unaffected by reset
PTE7
PTE6
PTE5
PTE4
Unaffected by reset
0
0
PTF5
PTF4
Unaffected by reset
= Unimplemented
Input/Output (I/O) Ports
or
DD
3
2
1
Bit 0
PTA3
PTA2
PTA1
PTA0
PTB3
PTB2
PTB1
PTB0
PTC3
PTC2
PTC1
PTC0
PTD3
PTD2
PTD1
PTD0
PTE3
PTE2
PTE1
PTE0
PTF3
PTF2
PTF1
PTF0
MC68HC708MP16
Rev. 3.1
Freescale Semiconductor