Renesas M16C Series User Manual page 299

M30245 Group
Port Pi register (Note 2)
b7 b6
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Port P8 register
b7 b6
Port P9 register
b7 b6
Figure 2.17.4. Programmable I/O ports-related registers (3)
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Symbol
b5 b4 b3 b2 b1 b0
Pi (i = 0 to 7, 10)
Bit symbol
Pi_0
Pi_1
Pi_2
Pi_3
Pi_4
Pi_5
Pi_6
Pi_7
Note 1:
Since P7
Note 2: In memory expansion and microprocessor mode, the contents of
corresponding port Pi register of pins A
RD, WRL/WR, WRH/BHE, ALE, RDY, HOLD, HLDA and BCLK cannot
be modified.
b5 b4 b3 b2 b1 b0
Symbol
P8
Bit symbol
P8_0
P8_1
P8_2
P8_3
P8_4
P8_5
P8_6
P8_7
b5 b4 b3 b2 b1 b0
Symbol
P9
Bit symbol
P9_0
VbusDTCT
P9_2
P9_3
Nothing is assigned.
Write "0" when writing to these bits. The value is indeterminate if read.
Note 1: This pin cannot be used for GPI/O. This bit reads "0" when Vbus detect is disabled.
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03E0 , 03E1
16 16
03E9 , 03EC
16
Bit name
Port Pi register
0
Data is input and output to and from
Port Pi register
1
each pin by reading and writing to
and from each corresponding bit
Port Pi register
2
0 : "L" level data
Port Pi register
3
1 : "H" level data (Note 1)
Port Pi register
4
(i = 0 to 7, 10)
Port Pi register
5
Port Pi register
6
Port Pi register
7
and P7 are N-channel open drain ports, the data is high-impedance.
0 1
Address
03F0
16
Bit name
Port P8 register
0
Data is input and output to and from
Port P8 register
1
each pin by reading and writing to
Port P8 register
and from each corresponding bit
2
(except for P8
Port P8 register
3
0 : "L" level data
Port P8 register
4
1 : "H" level data
Port P8 register
5
Port P8 register
6
Port P8 register
7
Address
03F1
16
Bit name
Port P9 register
0 : "L" level data
0
1 : "H" level data
0 : Not powered
Vbus detect state bit
1 : Powered (Note 1)
0 : "L" level data
Port P9 register
2
1 : "H" level data
0 : "L" level data
Port P9 register
3
1 : "H" level data
2. Programmable I/O Ports
Address
, 03E4 , 03E5 , 03E8 Indeterminate
16 16 16
, 03ED , 03F4 Indeterminate
16 16 16
Function
to A , D to D , CS to CS
0 19 0 15 0
When reset
Indeterminate
Function
)
5
When reset
Indeterminate
Function
When reset
R W
,
3
R W
R W