MC68HC08AZ60 Datasheet, PDF (292/452 Pages) Motorola, Inc – Advance Information

I/O Ports
Port E
Port E Data
Register
Freescale Semiconductor, Inc.
Port E is an 8-bit special function port that shares two of its pins with the
timer interface module (TIMA), two of its pins with the serial
communications interface module (SCI), and four of its pins with the
serial peripheral interface module (SPI).
The port E data register contains a data latch for each of the eight port
E pins.
Address: $0008
Bit 7
6
5
4
3
2
1
Read:
PTE7
Write:
PTE6
PTE5
PTE4
PTE3
PTE2
PTE1
Reset:
Unaffected by Reset
Alternate
Function:
SPSCK
MOSI
MISO
SS TACH1 TACH0 RxD
Figure 14. Port E Data Register (PTE)
Bit 0
PTE0
TxD
PTE[7:0] — Port E Data Bits
PTE[7:0] are read/write, software programmable bits. Data direction
of each port E pin is under the control of the corresponding bit in data
direction register E.
SPSCK — SPI Serial Clock Bit
The PTE7/SPSCK pin is the serial clock input of an SPI slave module
and serial clock output of an SPI master module. When the SPE bit is
clear, the PTE7/SPSCK pin is available for general-purpose I/O. (See
SPI Control Register on page 236).
MOSI — Master Out/Slave In Bit
The PTE6/MOSI pin is the master out/slave in terminal of the SPI
module. When the SPE bit is clear, the PTE6/MOSI pin is available for
general-purpose I/O.
MC68HC08AZ60 — Rev 1.0
292
I/O Ports
For More Information On This Product,
Go to: www.freescale.com
14-ioports
MOTOROLA