Fujitsu MB91460 SERIES FR60 User Manual page 516

Chapter 30 I/O Ports
3.Port Register Settings
EPILR16 0E90h -
EPILR17 0E91h -
EPILR18 0E92h -
EPILR19 0E93h -
EPILR20 0E94h -
EPILR21 0E95h -
EPILR22 0E96h -
EPILR23 0E97h -
EPILR24 0E98h -
EPILR25 0E99h -
EPILR26 0E9Ah -
EPILR27 0E9Bh -
EPILR28 0E9Ch -
EPILR29 0E9Dh -
EPILR30 0E9Eh -
EPILR31 0E9Fh -
EPILR32 0EA0h -
EPILR33 0EA1h -
EPILR34 0EA2h -
EPILR35 0EA3h -
R/W
3.6 Programmable Pull-Up/Pull Down Resistors
The Ports listed in the following table have 50 kOhm Pull-Up resistors, which can be enabled bit-wise. The
function is enabled by the Port Pull Enable Registers (PPER) and controlled by the Port Pull Control Register
(PPCR). The PPCR selects Pull-Up or Pull-Down. The Pull-Up/Pull-Down is disabled automatically in the STOP-
HiZ mode (STCR:STOP and STCR:HIZ set).
Bit
PPERx.y
Addr
PPER00 0EC0h PPER00.7
PPER01 0EC1h PPER01.7
500
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
R/W R/W
Port Pull-Up/Pull-Down Enable Registers
0 (default)
Pull-Up/Pull-Down disabled
7 6 5
PPER00.6 PPER00.5
PPER01.6 PPER01.5
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
R/W R/W
Pull-Up/Pull-Down enabled
4 3
PPER00.4 PPER00.3 PPER00.2
PPER01.4 PPER01.3 PPER01.2
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
R/W R/W R/W
1
2 1 0
PPER00.1 PPER00.0
PPER01.1 PPER01.0
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initial
0000 0000
0000 0000