參數(shù)資料
型號: Z86C62
廠商: ZiLOG, Inc.
英文描述: CMOS Z8 MICROCONTROLLER
中文描述: 單片機(jī)的CMOS Z8
文件頁數(shù): 20/46頁
文件大?。?/td> 388K
代理商: Z86C62
20
Z86C61/62/96
Z8
M
ICROCONTROLLER
FUNCTIONAL DESCRIPTION
(Continued)
Register File.
The Register File consists of four I/O port
registers, 236 general-purpose registers and 16 control
and status registers (Figure 18). There are eight further
registers for I/O ports 4, 5 and 6 in the Expanded Register
File (Bank F, R9-R2) (Figure 20).
The instructions can access registers directly or indirectly
through an 8-bit address field. The Z86C61/62/96 also
allows short 4-bit register addressing using the Register
Pointer (Figure 19). In the 4-bit mode, the Register File is
divided into 16 working register groups, each occupying
16 continuous locations. The Register Pointer addresses
the starting location of the active working-register group.
Stack Pointer (Bits 7-0)
R255
Stack Pointer (Bits 15-8)
Register Pointer
Program Control Flags
Interrupt Mask Register
Interrupt Request Register
Interrupt Priority Register
Ports 0-1 Mode
Port 3 Mode
Port 2 Mode
T0 Prescaler
Timer/Counter0
T1 Prescaler
Timer/Counter1
Timer Mode
Serial I/O
General-Purpose
Registers
Port 3
Port 2
Port 1
Port 0
R254
R253
R252
R251
R250
R249
R248
R247
R246
R245
R244
R243
R242
R241
R240
R239
R3
R2
R1
R0
SPL
SPH
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
PRE0
T0
PRE1
T1
TMR
SIO
P3
P2
P1
P0
R4
Location
Identifiers
D7
D6
D5
D4
D3
D2
D1
D0
Expanded Register Group
Working Register Group
RP
R253
Default Setting After Reset = 00000000
Note:
Register Bank E0-EF can only be accessed through
working registers and indirect addressing modes.
Figure 19. Register Pointer Register
Figure 18. Register File
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