Appendix B Internal I/O Register; Address - Hitachi H8S/2646 Hardware Manual

B.1

Address

Register
Address Name Bit 7
H'EBC0 to MRA SM1
H'EFBF MRB CHNE
SAR
DAR
CRA
CRB
H'F800 MCR MCR7
H'F801 GSR —
H'F802 BCR BCR7
H'F803 BCR15
H'F804 MBCR MBCR7
H'F805 MBCR15
H'F806 TXPR TXPR7
H'F807 TXPR15
H'F808 TXCR TXCR7
H'F809 TXCR15
H'F80A TXACK TXACK7
H'F80B TXACK15
H'F80C ABACK ABACK7
H'F80D ABACK15
H'F80E RXPR RXPR7
H'F80F RXPR15
H'F810 RFPR RFPR7
H'F811 RFPR15
H'F812 IRR IRR7
H'F813 —
858

Appendix B Internal I/O Register

Bit 6 Bit 5 Bit 4
SM0 DM1 DM0
DISEL — —
— MCR5 —
— — —
BCR6 BCR5 BCR4
BCR14 BCR13 BCR12
MBCR6 MBCR5 MBCR4
MBCR14 MBCR13 MBCR12
TXPR6 TXPR5 TXPR4
TXPR14 TXPR13 TXPR12
TXCR6 TXCR5 TXCR4
TXCR14 TXCR13 TXCR12
TXACK6 TXACK5 TXACK4
TXACK14 TXACK13 TXACK12
ABACK6 ABACK5 ABACK4
ABACK14 ABACK13 ABACK12
RXPR6 RXPR5 RXPR4
RXPR14 RXPR13 RXPR12
RFPR6 RFPR5 RFPR4
RFPR14 RFPR13 RFPR12
IRR6 IRR5 IRR4
— — IRR12
Bit 3 Bit 2 Bit 1
MD1 MD0 DTS
— — —
— MCR2 MCR1
GSR3 GSR2 GSR1
BCR3 BCR2 BCR1
BCR11 BCR10 BCR9
MBCR3 MBCR2 MBCR1
MBCR11 MBCR10 MBCR9
TXPR3 TXPR2 TXPR1
TXPR11 TXPR10 TXPR9
TXCR3 TXCR2 TXCR1
TXCR11 TXCR10 TXCR9
TXACK3 TXACK2 TXACK1
TXACK11 TXACK10 TXACK9
ABACK3 ABACK2 ABACK1
ABACK11 ABACK10 ABACK9
RXPR3 RXPR2 RXPR1
RXPR11 RXPR10 RXPR9
RFPR3 RFPR2 RFPR1
RFPR11 RFPR10 RFPR9
IRR3 IRR2 IRR1
— — IRR9
Module Data Bus
Bit 0 Name Width
Sz DTC 8/16/32*
—
MCR0 HCAN 8/16
GSR0
BCR0
BCR8
—
MBCR8
—
TXPR8
—
TXCR8
—
TXACK8
—
ABACK8
RXPR0
RXPR8
RFPR0
RFPR8
IRR0
IRR8