mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 298

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

I/O Ports
MC68HC08AZ60 — Rev 1.0
298
When bit DDRFx is a logic 1, reading address $0009 reads the PTFx
data latch. When bit DDRFx is a logic 0, reading address $0009 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 F pins.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
DDRF
Bit
For More Information On This Product,
0
1
READ DDRF ($000D)
WRITE DDRF ($000D)
WRITE PTF ($0009)
READ PTF ($0009)
Go to: www.freescale.com
PTF
Bit
X
X
Table 6. Port F Pin Functions
I/O Ports
RESET
Figure 19. Port F I/O Circuit
Input, Hi-Z
I/O Pin
Output
Mode
DDRFx
PTFx
Read/Write
Accesses
DDRF[6:0]
DDRF[6:0]
to DDRF
Table 6
PTF[6:0]
Read
Accesses to PTF
Pin
summarizes the
MOTOROLA
PTF[6:0]
PTF[6:0]
Write
20-ioports
PTFx
(1)