tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 212

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Input/Output Ports
7.15 Port E (PE0 through PE7)
The port E is a general-purpose, 8-bit input/output port. For this port, inputs and outputs can be specified in units
of bits by using the control register PECR and the function register PEFC1. A reset allows all bits of the output
latch PE to be set to "1," all bits of PECR and PEFC to be cleared to "0," and the port E to be put in input mode.
Input is disabled right after reset. To enable input, set the corresponding bit of PEIE to “1”.
Besides the input/output port function, the port E performs the key-on wake-up input function.
PE read
(function control)
(output control)
(output control)
(input control)
(output latch)
PEPUP
PEFC1
PECR
PEIE
PE
Drive disabled during
STOP/ RESET
Fig. 7.46 Port E (PE0 through PE7)
0
1
TMP19A44 (rev1.3) 7-64
KEY08~KEY15
PORT KEEP
1
0
1
TMP19A44
2010-04-01
Port E
PE0~7
(KEY08~KEY15)
RESET