mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 176

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
13.6 Port E
Port E is a 6-bit general-purpose bidirectional I/O port. PTE[3:2] are special-function pins that share with
the USB data pin D+ and D–. Four of the pins PTE[7:4] are shared with serial peripheral interface (SPI)
module.
13.6.1 Port E Data Register
The port E data register contains a data latch for each of the six port E pins.
176
Alternative Function:
Additional Function:
Additional Function:
Additional Function:
Additional Function:
Additional Function:
Additional Function:
Address:
Reset:
Read:
Write:
$0008
PTE7
Bit 7
SS
Figure 13-14. Port E Data Register (PTE)
= Unimplemented
MC68HC908JW32 Data Sheet, Rev. 5
PTE6
MISO
6
MOSI
PTE5
5
SPSCK
Unaffected by reset
PTE4
4
open drain
Optional
pullup to
External
Interrupt
current
PTE3
5kΩ
VDD
high
D–
3
open drain
PS2CLK
Optional
pullup to
VREF33
Optional
pullup to
current
PTE2
5kΩ
USB
VDD
high
D+
2
1
Freescale Semiconductor
Bit 0