HD6475348R Datasheet, PDF (199/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Table 9-17 Port 9 Pin Functions (cont)
Pin
Selection of Pin Functions
P92 / TXD2 / The function depends on the OE bit in PWM timer 1’s TCR, the TE bit in SCI2’s
PW1
SCR, and the P9PWME bit and P9SCI2E bit in SYSCR2.
P9SCI2E
1
0
0
1
P9PWME
0
1
0
1
OE
0101 0
1
0/1 0/1
TE
0
1 0 1 0 1 0/1 0/1
Pin function P92 TXD2 P92 PW1
P92
input/ output input/ output
input/
output
output
output
When used for P92 input/output, the input or output function is selected by P92DDR.
P91 /
FTOA3
The function depends on the output enable A bit (OEA) in FRT3’s TCR and on the
P91DDR bit as follows.
OEA
P91DDR
Pin function
0
0
1
P91 input P91 output
1
0
1
FTOA3 output
P90 /
FTOA2
The function depends on the output enable A bit (OEA) in FRT2’s TCR and on the
P90DDR bit as follows.
OEA
P90DDR
Pin function
0
0
1
P90 input P90 output
1
0
1
FTOA2 output
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