Datasheet

Rev.6.00 Oct.28.2004 page 107 of 1016
REJ09B0138-0600H
6.1.4 Register Configuration
Table 6-2 summarizes the registers of the bus controller.
Table 6-2 Bus Controller Registers
Initial Value
Name Abbreviation R/W
Power-On
Reset
Manual
Reset*
3
Address*
1
Bus width control register ABWCR R/W H'FF/H'00*
2
Retained H'FED0
Access state control register ASTCR R/W H'FF Retained H'FED1
Wait control register H WCRH R/W H'FF Retained H'FED2
Wait control register L WCRL R/W H'FF Retained H'FED3
Bus control register H BCRH R/W H'D0 Retained H'FED4
Bus control register L BCRL R/W H'3C Retained H'FED5
Memory control register MCR R/W H'00 Retained H'FED6
DRAM control register DRAMCR R/W H'00 Retained H'FED7
Refresh timer/counter RTCNT R/W H'00 Retained H'FED8
Refresh time constant register RTCOR R/W H'FF Retained H'FED9
Notes: 1. Lower 16 bits of the address.
2. Determined by the MCU operating mode.
3. Manual reset is only supported in the H8S/2357 ZTAT.