mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 177

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

Table 13-7
Table 13-8
PTE[7:2] — Port E Data Bits
Freescale Semiconductor
Enable (USBEN)
USB Module
PTE[7:2] 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.
The PTE3 and PTE2 pullup enable bits, PTE3P and PTE2P, in the port option control register 2
(POCR2) enable 5kΩ pullups to VDD on PTE3 and PTE2 if the USB module is disabled. (See
Port
The PTE2 USB pullup enable bits, DPPULLEN, in the port option control register 2 (POCR2) enable
USB pullups to VREF33 on PTE2 for USB operation. Either of PTE2P or DPPULLEN bit can be
activated at the one time, DPPULLEN bit has higher priority, it will always override the setting of PTE2P
bit.
USB Module
(USBEN)
Enable
1
1
0
0
0
0
0
0
Options.)
1
0
0
0
shows the priority table for PTE2/D+ pin.
shows the priority table for PTE3/D– pin.
PS2 Clock
Generator
(PS2EN)
PTE3 IRQ Enable
Enable
X
X
1
1
0
0
0
0
(PT3IE)
X
1
0
0
Direction
(DDRE2)
Control
Table 13-7. PTE2/D+ Priority Table
Table 13-8. PTE3/D– Priority Table
Data
X
X
X
X
1
1
0
0
MC68HC908JW32 Data Sheet, Rev. 5
Control (DDRE3)
Data Direction
X
X
0
1
5k Pullup
(PTE2P)
Enable
1/0
X
X
X
X
0
1
1
5K Pullup Enable
(PTE3P)
(DPPULPEN)
0/1
0/1
0/1
X
USB D+
Enable
Pullup
1/0
1
0
0
1
0
1
0
USB D– pin
GPIO input with associated interrupt
function and optional 5k pullup to VDD
GPIO input with optional 5k pullup to
VDD
GPIO output (open-drain) with optional
5k pullup to VDD
D+ with pullup to VREF33.
D+ without pullup
PS2 Clock output (open-drain) with
optional 5k pullup to VDD
PS2 Clock output (open-drain) with
optional 1.2k pullup to VREG33
GPIO output (open-drain) with 1.2K
pullup to REG33V
GPIO output (open-drain) with 5k
pullup to VDD
GPIO input with 1.2K pullup to
REG33V
GPIO input with 5K pullup to VDD
Pin Function
Pin Function
13.7
Port E
177