HD6413007F20 Datasheet, PDF (310/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

8. I/O Ports
Table 8.16 Port B Pin Functions
Pin
PB /TP /
7
15
RxD
2
Pin Functions and Selection Method
Bit RE in SCR of SCI2, bit SMIF in SCMR, bit NDER15 in NDERB, and bit PB DDR
7
select the pin function as follows.
SMIF
0
1
RE
0
1
⎯
PB₇DDR
NDER15
0
1
⎯
0
1
⎯
⎯
1
⎯
⎯
Pin function
PB input PB output TP output RxD input RxD input
7
7
15
2
2
PB /TP /
6
14
TxD
2
Bit TE in SCR of SCI2, bit SMIF in SCMR, bit NDER14 in NDERB, and bit PB DDR
6
select the pin function as follows.
SMIF
0
1
TE
0
1
⎯
PB₆DDR
NDER14
0
1
⎯
0
1
⎯
⎯
1
⎯
⎯
Pin function
PB
6
input
PB
6
output
TP
14
output
TxD
2
output
TxD
2
output*
Note: * Functions as the TxD₂ output pin, but there are two states: one in which
the pin is driven, and another in which the pin is at high-impedance.
PB₅/TP₁₃/ Bit C/A in SMR of SCI2, bits CKE0 and CKE1 in SCR, bit NDER13 in NDERB, and
SCK₂/LCAS bit PB₅DDR select the pin function as follows.
CKE1
0
1
C/A
0
1
⎯
CKE0
0
1
⎯
⎯
PB₅DDR
NDER13
0
1
⎯
0
1
⎯
⎯
⎯
1
⎯
⎯
⎯
Pin function
PB₅
input
PB₅
output
TP₁₃
output
SCK₂
output
SCK₂
output
SCK₂
input
LCAS output*
Note: * LCAS output depending on bits DRAS2 to DRAS0 in DRCRA and bit
CSEL in DRCRB, and regardless of bits C/A, CKE0 and CKE1, NDER13, and
PB DDR. For details, see section 6, Bus Controller.
5
Rev.5.00 Sep. 12, 2007 Page 280 of 764
REJ09B0396-0500