Fujitsu FR81S User Manual
CHAPTER 11: I/O PORTS
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : I/O PORTS
FUJITSU SEMICONDUCTOR CONFIDENTIAL
6
4. Registers
This section explains registers of the I/O ports.
Address
Registers
Register function
+0
+1
+2
+3
0x0000
PDR00
PDR01
PDR02
PDR03
Port data register 00 to 19
0x0004
PDR04
PDR05
PDR06
PDR07
0x0008
PDR08
PDR09
PDR10
PDR11
0x000C
PDR12
PDR13
PDR14
PDR15
0x0010
Reserved
Reserved
Reserved
Reserved
0x0014
Reserved
Reserved
Reserved
Reserved
0x0018
PDR16
PDR17
PDR18
PDR19
0x0E00
DDR00
DDR01
DDR02
DDR03
Data direction register 00 to 19
(Key code target registers)
0x0E04
DDR04
DDR05
DDR06
DDR07
0x0E08
DDR08
DDR09
DDR10
DDR11
0x0E0C
DDR12
DDR13
DDR14
DDR15
0x0E10
Reserved
Reserved
Reserved
Reserved
0x0E14
Reserved
Reserved
Reserved
Reserved
0x0E18
DDR16
DDR17
DDR18
DDR19
0x0E20
PFR00
PFR01
PFR02
PFR03
Port function register 00 to 19
(Key code target registers)
0x0E24
PFR04
PFR05
PFR06
PFR07
0x0E28
PFR08
PFR09
PFR10
PFR11
0x0E2C
PFR12
PFR13
PFR14
PFR15
0x0E30
Reserved
Reserved
Reserved
Reserved
0x0E34
Reserved
Reserved
Reserved
Reserved
0x0E38
PFR16
PFR17
PFR18
PFR19
0x0E40
PDDR00
PDDR01
PDDR02
PDDR03
Input data direct read register 00 to 19
0x0E44
PDDR04
PDDR05
PDDR06
PDDR07
0x0E48
PDDR08
PDDR09
PDDR10
PDDR11
0x0E4C
PDDR12
PDDR13
PDDR14
PDDR15
0x0E50
Reserved
Reserved
Reserved
Reserved
0x0E54
Reserved
Reserved
Reserved
Reserved
0x0E58
PDDR16
PDDR17
PDDR18
PDDR19
0x0E60
EPFR00
EPFR01
EPFR02
EPFR03
Extended port function register 00 to
63 (Key code target registers)
0x0E64
EPFR04
EPFR05
EPFR06
EPFR07
0x0E68
EPFR08
EPFR09
EPFR10
EPFR11
0x0E6C
EPFR12
EPFR13
EPFR14
EPFR15
MB91520 Series
MN705-00010-1v0-E
401