
Programmable I/O Ports
M30240 Group
Rev.1.00 Sep 24, 2003 Page 284 of 360
2.13.1.8 Related registers
Figure 2.130 shows the memory map of programmable I/O ports-related registers, and Figures 2.131 to
2.134 show programmable I/O ports-related registers.
Figure 2.130: Memory map of programmable I/O ports related registers
Figure 2.131: Programmable I/O port related registers (1)
03E016
03E116
03E216
03E316
03E416
03E516
03E616
03E716
03E816
03E916
03EA16
03EB16
03EC16
03ED16
03EE16
03EF16
03F016
03F116
03F216
03F316
03F416
03F516
03F616
03FB16
03FC16
03FD16
Port P0 (P0)
Port P0 direction register (PD0)
Port P1 (P1)
Port P1 direction register (PD1)
Port P2 (P2)
Port P2 direction register (PD2)
Port P3 (P3)
Port P3 direction register (PD3)
Port P6 (P6)
Port P6 direction register (PD6)
Port P7 (P7)
Port P7 direction register (PD7)
Port P8 (P8)
Port P8 direction register (PD8)
Port P10 (P10)
Port P10 direction register (PD10)
Pull-up control register 0 (PUR0)
Pull-up control register 1 (PUR1)
03FE16
03FA16
P2 Drive capacity (P2DR)
Timer A output drive capacity (TADR)
Port Pi direction register
Symbol
Address
PDi (i = 0 to 3,6,7,10)
03E216, 03E316, 03E616, 03E716,
03EE16, 03EF16,03F616
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
PDi_0
Port Pi0 direction register
PDi_1
Port Pi1 direction register
PDi_2
Port Pi2 direction register
PDi_3
Port Pi3 direction register
PDi_4
Port Pi4 direction register
PDi_5
Port Pi5 direction register
PDi_6
Port Pi6 direction register
PDi_7
Port Pi7 direction register
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
(i = 0 to 3, 6, 7, 10)
Port P8 direction register
Symbol
Address
When reset
PD8
03F216
00X000002
Bit name
Function
Bit symbol
W
R
b7
b6
b5
b4
b3
b2
b1
b0
PD8_0
Port P80 direction register
PD8_1
Port P81 direction register
PD8_2
Port P82 direction register
PD8_3
Port P83 direction register
PD8_4
Port P84 direction register
Nothing is assigned.
In an attempt to write to this bit, write “0”. The value, if read, turns out to be
indeterminate.
PD8_6
Port P86 direction register
PD8_7
Port P87 direction register
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
When reset
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