參數(shù)資料
型號: Z86C46
廠商: ZiLOG, Inc.
英文描述: CMOS Z8 MCU(CMOS Z8系列微控制器)
中文描述: 單片機的CMOS Z8的CMOS(Z8系列微控制器)
文件頁數(shù): 30/70頁
文件大?。?/td> 1192K
代理商: Z86C46
Z86C34/C35/C36/C44/C45/C46
CMOS Z8 MCUs with ASCI UART
ZiLOG
30
P R E L I M I N A R Y
DS007601-Z8X0499
FUNCTIONAL DESCRIPTION
(Continued)
nal program and data memory from addresses
16384
/
32768
to
65535
.
Expanded Register File (ERF).
The Z8 register file is ex-
panded to allow for additional system control registers, and
for mapping of additional peripheral devices along with I/O
ports into the register address area. The Z8 register address
space
R0
through
R15
is implemented as 16 groups of 16
registers per group (Figure 19). These register groups are
known as the Expanded Register File (
ERF
). Bits 7–4 of reg-
ister
RP
select the working register group. Bits
3–0
of reg-
ister
RP
select the expanded register group. Three system
configuration registers reside in the Expanded Register File
at Bank F (
PCON
,
SMR
,
WDTMR
). The rest of the Expand-
ed Register is not physically implemented, and is open for
future expansion.
Figure 18. Data Memory Map
65535
16384/32768
16383/32767
0
External
Data
Memory
Not Addressable
ROM Mode
65535
0
External
Data
Memory
ROMless Mode
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