MC912DG128ACPVE Datasheet, PDF (64/478 Pages) Freescale Semiconductor, Inc – Upward compatible with M68HC11 instruction set

Freescale Semiconductor, Inc.
Pinout and Signal Descriptions
When the PUPT bit in the TMSK2 register is set, all input pins are pulled
up internally by an active pull-up device. Pullups are disabled after reset.
Setting the RDPT bit in the TMSK2 register configures all port T outputs
to have reduced drive levels. Levels are at normal drive capability after
reset. The TMSK2 register can be read or written anytime after reset.
Refer to Enhanced Capture Timer.
Table 3-3. MC68HC912DT128A Port Description Summary
Port Name
Port A
PA[7:0]
Pin
Numbers
112-pin
64-57
Port B
PB[7:0]
31–24
Port AD1
PAD1[7:0]
Port AD0
PAD0[7:0]
Port CAN2
PCAN2[1:0]
(1)
84/82/80/7
8/76/74/72
/70
83/81/79/7
7/75/73/71
/69
100–101
Data Direction
Register (Address)
In/Out
DDRA ($0002)
In/Out
DDRB ($0003)
In
In
PCAN2[1] Out
PCAN2[0] In
Description
Port A and port B pins are used for address and data in
expanded modes. The port data registers are not in the
address map during expanded and peripheral mode
operation. When in the map, port A and port B can be read or
written any time.
DDRA and DDRB are not in the address map in expanded or
peripheral modes.
Analog-to-digital converter 1 and general-purpose I/O.
Analog-to-digital converter 0 and general-purpose I/O.
PCAN2[1:0] are used with the MSCAN2 module and cannot be
used as general purpose I/O (MC68HC912DT128A only).
Port CAN1
PCAN1[1:0]
Port CAN0
PCAN0[1:0]
Port IB
PIB[7:6]
Port IB
PIB[5:4]⁽²⁾
102–103
104–105
98–99
100–101
Port E
PE[7:0]
36–39,
53–56
Port K
PK[7,3:0]
Port P
PP[3:0]
13,
108-111
112,
1–3
PCAN1[1] Out
PCAN1[0] In
PCAN0[1] Out
PCAN0[0] In
In/Out
DDRIB ($00E7)
In/Out
DDRIB ($00E7)
PE[1:0] In
PE[7:2] In/Out
DDRE ($0009)
In/Out
DDRK ($00FD)
In/Out
DDRP ($0057)
PCAN1[1:0] are used with the MSCAN1 module and cannot be
used as general purpose I/O.
PCAN0[1:0] are used with the MSCAN0 module and cannot be
used as general purpose I/O.
General purpose I/O. PIB[7:6] are used with the I-Bus module
when enabled.
General purpose I/O (MC68HC912DG128A only).
Mode selection, bus control signals and interrupt service
request signals; or general-purpose I/O.
Page index emulation signals in expanded or peripheral mode
or general-purpose I/O.
General-purpose I/O. PP[3:0] are used with the pulse-width
modulator when enabled.
Technical Data
64
MC68HC912DT128A — Rev 4.0
Pinout and Signal Descriptions
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