mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 301

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

Port H
Port H Data
Register
23-ioports
MOTOROLA
Function:
Address:
Alternate
When bit DDRGx is a logic 1, reading address $000A reads the PTGx
data latch. When bit DDRGx is a logic 0, reading address $000A reads
the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
operation of the port G pins.
Port H is a 2-bit special function port that shares all of its pins with the
keyboard interrupt module (KBD).
The port H data register contains a data latch for each of the two port H
pins.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
DDRG
Bit
For More Information On This Product,
0
1
$000B
Bit 7
R
R
0
Go to: www.freescale.com
Figure 23. Port H Data Register (PTH)
PTG
= Reserved
Bit
X
X
R
6
0
Table 7. Port G Pin Functions
I/O Ports
Input, Hi-Z
I/O Pin
Output
Mode
R
5
0
Unaffected by Reset
R
4
0
Read/Write
DDRG[2:0]
DDRG[2:0]
Accesses
to DDRG
R
3
0
Table 7
MC68HC08AZ60 — Rev 1.0
PTG[2:0]
R
2
0
Read
Accesses to PTG
Pin
summarizes the
PTH1
KBD4
1
PTG[2:0]
PTG[2:0]
Write
I/O Ports
PTH0
KBD3
Bit 0
Port H
(1)
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