參數(shù)資料
型號(hào): Z8S18006PEC
廠商: ZiLOG, Inc.
元件分類: 微處理器
英文描述: CAP 0.1UF 50V 2% NP0(C0G) AXIAL TR-14
中文描述: 強(qiáng)化Z180微處理器
文件頁(yè)數(shù): 63/70頁(yè)
文件大?。?/td> 387K
代理商: Z8S18006PEC
Z80180/Z8S180/Z8L180
Enhanced Z180 Microprocessor
Zilog
DS971800401
P R E L I M I N A R Y
1-63
1
MMU BANK BASE REGISTER (BBR).
Mnemonic BBR
Address 39
BBR specifies the base address (on 4 KB boundaries)
used to generate a 19-bit physical address for Bank Area
accesses. All bits of BBR are reset to 0 during RESET.
MMU COMMON/BANK AREA REGISTER (CBAR).
Mnemonic CBAR
Address 3A
CBAR
Z80180/Z8S180/Z8L180 64 KB logical address space for
up to three areas; Common Area), Bank Area and Com-
mon Area 1.
specifies
boundaries
within
the
CA3-CA0:CA (bits 7-4).
CA specifies the start (Low) ad-
dress (on 4 KB boundaries) for the Common Area 1. This
also determines the last address of the Bank Area. All bits
of CA are set to 1 during RESET.
BA-BA0 (bits 3-0).
BA specifies the start (Low) address
(on 4 KB boundaries) for the Bank Area. This also deter-
mines the last address of the Common Area 0. All bits of
BA are set to 1 during RESET.
Figure 80. MMU Bank Base Register (BBR: I/O Address = 39H)
Bit
BB7
BB6
R/W
BB5
7
6
5
4
3
2
1
0
BB4
BB2
BB1
BB0
R/W
BB3
R/W
R/W
R/W
R/W
R/W
R/W
Figure 81. MMU Common/Bank Area Register (CBAR: I/O Address = 3 AH
Bit
CA3
CA2
R/W
CA1
7
6
5
4
3
2
1
0
CA0
BA2
BA1
BA0
MMU Common/Bank Area Register (CBAR: I/O Address = 3 AH)
R/W
BA3
R/W
R/W
R/W
R/W
R/W
R/W
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