mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 317

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

MC68HC908AS60 — Rev. 1.0
When bit DDREx is a logic 1, reading address $0008 reads the PTEx
data latch. When bit DDREx is a logic 0, reading address $0008 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 E pins.
X = Don’t care
Hi-Z = High impedance
1. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
DDRE
Bit
For More Information On This Product,
0
1
READ DDRE ($000C)
WRITE DDRE ($000C)
WRITE PTE ($0008)
READ PTE ($0008)
Go to: www.freescale.com
Input/Output (I/O) Ports
PTE
Bit
X
X
Table 20-5. Port E Pin Functions
Figure 20-16. Port E I/O Circuit
RESET
Input, Hi-Z
I/O Pin
Output
Mode
DDREx
PTEx
Read/Write
DDRE[7:0]
DDRE[7:0]
Accesses
to DDRE
Table 20-5
PTE[7:0]
Read
Accesses to PTE
Pin
Input/Output (I/O) Ports
summarizes
Technical Data
PTE[7:0]
PTE[7:0]
Write
Port E
PTEx
(1)