Renesas H8/3067 Series User Manual page 345

Table 8.23 Port B Pin Functions (Modes 1 to 5)
Pin Pin Functions and Selection Method
PB /TP / Bit RE in SCR of SCI2, bit SMIF in SCMR, bit NDER15 in NDERB, and bit PB
7 15
RxD follows.
2
SMIF
RE
PB DDR
7
NDER15
Pin function
PB /TP / Bit TE in SCR of SCI2, bit SMIF in SCMR, bit NDER14 in NDERB, and bit PB
6 14
TxD follows.
2
SMIF
TE
PB DDR
6
NDER14
Pin function
Note: * Functions as the TxD
another in which the pin is at high-impedance.
PB /TP / Bit C/A in SMR of SCI2, bits CKE0 and CKE1 in SCR, bit NDER13 in NDERB, and bit PB
5 13
SCK /LCAS function as follows.
2
CKE1
C/A
CKE0
PB DDR
5
NDER13
Pin function
LCAS output depending on bits DRAS2 to DRAS0 in DRCRA and bit CSEL in DRCRB, and
Note: *
regardless of bits C/A, CKE0 and CKE1, NDER13, and PB
Controller.
PB /TP / Bit NDER12 in NDERB and bit PB
4 12
UCAS
PB DDR
4
NDER12
Pin function
UCAS output depending on bits DRAS2 to DRAS0 in DRCRA and bit CSEL in DRCRB, and
Note: *
regardless of bits NDER12 and PB
0
0 1
— 0
PB input PB output
7 7
0
0 1
— 0
PB input PB output
6 6
output pin, but there are two states: one in which the pin is driven, and
2
0
0
0 1
— 0
PB input PB output
5 5
DDR select the pin function as follows.
4
0
—
PB input
4
DDR. For details, see section 6, Bus Controller.
4
DDR select the pin function as
7
0
1
1
TP output RxD
15
DDR select the pin function as
6
0
1
1
TP output TxD
14
0
1
1 —
1 —
TP output SCK output SCK
13 2
LCAS output*
DDR. For details, see section 6, Bus
5
1
0
PB output
4
UCAS output*
Rev. 4.00 Jan 26, 2006 page 321 of 938
Section 8 I/O Ports
1
1 —
— —
— —
input RxD input
2 2
1
1 —
— —
— —
output TxD output*
2 2
DDR select the pin
5
1
1 —
— —
— —
— —
output SCK input
2 2
1
1
TP output
12
REJ09B0276-0400