MC908JL16CFAE FREESCALE [Freescale Semiconductor, Inc], MC908JL16CFAE Datasheet - Page 147
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MC908JL16CFAE
Manufacturer Part Number
MC908JL16CFAE
Description
Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC908JL16CFAE.pdf
(230 pages)
- Current page: 147 of 230
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Table 10-4
10.4.3 Port D Control Register (PDCR)
The port D control register enables/disables the pull-up resistor and slow-edge high current capability of
pins PTD6 and PTD7.
SLOWDx — Slow Edge Enable
PTDPUx — Port D Pull-up Enable Bits
10.5 Port E
Port E is a 2-bit special function port that shares its pins with the timer 2 interface module (see
Timer Interface Module
Freescale Semiconductor
The SLOWD6 and SLOWD7 bits enable the slow-edge, open-drain, high current output (25mA sink)
of port pins PTD6 and PTD7 respectively. DDRDx bit is not affected by SLOWDx.
The PTDPU6 and PTDPU7 bits enable the pull-up device on PTD6 and PTD7 respectively, regardless
the status of DDRDx bit.
1 = Slow edge enabled; pin is open-drain output
0 = Slow edge disabled; pin is push-pull (standard I/O)
1 = Enable pull-up device
0 = Disable pull-up device
summarizes the operation of the port D pins.
DDRD Bit
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect the input.
Address: $000A
Reset:
0
1
Read:
Write:
Bit 7
(TIM)).
PTD Bit
0
0
X
PTE0–PTE1 are available on 32-pin packages only.
X
(1)
Figure 10-13. Port D Control Register (PDCR)
= Unimplemented
6
0
0
I/O Pin Mode
Input, Hi-Z
Table 10-4. Port D Pin Functions
MC68HC908JL16 Data Sheet, Rev. 1.1
Output
5
0
0
(2)
NOTE
Accesses to DDRD
4
0
0
Read/Write
DDRD[7:0]
DDRD[7:0]
SLOWD7
3
0
SLOWD6
2
0
PTD[7:0]
Read
Pin
Accesses to PTD
PTDPU7
1
0
PTD[7:0]
PTD[7:0]
Write
PTDPU6
Bit 0
0
(3)
Chapter 6
Port E
147
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