mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 322

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
Technical Data
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.
the operation of the port G pins.
X = Don’t care
Hi-Z = High impedance
1. Writing affects data register, but does not affect input.
DDRG
Freescale Semiconductor, Inc.
Bit
For More Information On This Product,
0
1
READ DDRG ($000E)
WRITE DDRG ($000E)
WRITE PTG ($000A)
READ PTG ($000A)
Go to: www.freescale.com
Input/Output (I/O) Ports
PTG
Bit
X
X
Table 20-7. Port G Pin Functions
Figure 20-22. Port G I/O Circuit
RESET
Input, Hi-Z
I/O Pin
Output
Mode
DDRGx
PTGx
Read/Write
DDRG[2:0]
DDRG[2:0]
Accesses
to DDRG
MC68HC908AS60 — Rev. 1.0
Table 20-7
PTG[2:0]
Read
Accesses to PTG
Pin
summarizes
PTG[2:0]
PTG[2:0]
Write
PTGx
(1)