Datasheet
Pinout and Signal Descriptions
Technical Data MC68HC912D60A — Rev. 3.1
52 Pinout and Signal Descriptions Freescale Semiconductor
3.6 Port Signals
The MC68HC912D60A incorporates eight ports which are used to
control and access the various device subsystems. When not used for
these purposes, port pins may be used for general-purpose I/O. In
addition to the pins described below, each port consists of a data register
SDO/MOSI 68 94 Master out/slave in pin for serial peripheral interface
SDI/MISO 67 93 Master in/slave out pin for serial peripheral interface
TxD1 66 92 SCI1 transmit pin
RxD1 65 91 SCI1 receive pin
TxD0 64 90 SCI0 transmit pin
RxD0 63 89 SCI0 receive pin
IOC[7:0]
14–11,
7–4
18–15, 7–4
Pins used for input capture and output compare in the timer and pulse
accumulator subsystem.
AN1[7:0] N/A
84/82/80/78/
76/74/72/70
Analog inputs for the analog-to-digital conversion module 1
AN0[7:0] 60–53
83/81/79/77/
75/73/71/69
Analog inputs for the analog-to-digital conversion module 0
TEST 71 97
Used for factory test purposes. Do not connect in the application; may be
bonded to 5.5 V max.
TxCAN 72 104 MSCAN transmit pin. Leave unconnected if MSCAN is not used.
RxCAN 73 105
MSCAN receive pin. Pin has internal pull-up; where msCAN module is not
used, do not tie to VSS.
KWG[6:0]
8 (KWG4
only)
9–11, 19–22
Key wake-up and general purpose I/O; can cause an interrupt when an
input transitions from high to low. On 80-pin QFP all 8 I/O should be
initialised.
PGUPD
(1)
13 Defines if I/O port resistive load is a pull-up or a pull-down, when enabled.
KWH[7:0]
24 (KWH4
only)
32–35,
49–52
Key wake-up and general purpose I/O; can cause an interrupt when an
input transitions from high to low. On 80-pin QFP all 8 I/O should be
initialised.
PHUPD
(2)
41 Defines if I/O port resistive load is a pull-up or a pull-down, when enabled.
1. In the 80-pin version PGUPD is connected internally to VDD
2. In the 80-pin version PHUPD is connected internally to VSS
Table 3-2. MC68HC912D60A Signal Description Summary
Pin Name
Pin Number
Description
80-pin 112-pin