mc68hc11k4 Freescale Semiconductor, Inc, mc68hc11k4 Datasheet - Page 146

• Manufacturer Part Number: mc68hc11k4
• Description: Mc68hc11k1 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Parallel Input/Output
6.10 Port H
Technical Data
146
Alternate Pin Function: CSPROG
1. Not available on KS devices
1. Not available on KS devices
Address: $007C
Address: $007D
The state of port H pin 7 (PH7) at reset is mode dependent. In single-chip
or bootstrap modes, it is a high-impedance input; its data direction can
be changed through DDRH. In expanded and special test modes PH7 is
the program chip select line, CSPROG at reset, but can be reconfigured
for GPIO (see
Port H pins (PH[6:0]) reset to high-impedance inputs in any mode. Data
direction can be changed through DDRH. Except for the M68HC11KS
devices, bits 6:4 can serve as chip select lines in expanded and special
test modes (see
pulse-width modulator outputs (see
(PWM)) in any mode.
All eight port H pins have selectable internal pullup resistors (see
6.11 Internal Pullup
DDH[7:0] — Data Direction for Port H Bits
Reset:
Reset:
Read:
Read:
Write:
Write:
Freescale Semiconductor, Inc.
Figure 6-16. Port H Data Direction Register (DDRH)
For More Information On This Product,
0 = Input
1 = Output
DDH7
Figure 6-15. Port H Data Register (PORTH)
PH7
Bit 7
Bit 7
0
0
(1)
(1)
Go to: www.freescale.com
11.4 Chip
Parallel Input/Output
DDH6
CSPG2
PH6
11.4 Chip
6
0
6
0
(1)
(1)
Resistors).
DDH5
CSPG1
PH5
Selects).
5
0
5
0
(1)
Selects). Pins 3:0 can be configured as
(1)
DDH4
PH4
CSIO
4
0
4
0
(1)
9.9 Pulse-Width Modulator
(1)
DDH3
PW4
PH3
3
0
3
0
DDH2
PH2
PS3
2
0
2
0
M68HC11K Family
DDH1
PH1
PS2
1
0
1
0
MOTOROLA
DDH0
Bit 0
PH0
Bit 0
PS1
0
0