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參數(shù)資料
| 型號(hào)： | Z8018520FSC |
| 廠商： | ZILOG INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | SMART PERIPHERAL CONTROLLERS |
| 中文描述： | MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 53/95頁(yè) |
| 文件大?。?/td> | 484K |
| 代理商： | Z8018520FSC |
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53
P R E L I M I N A R Y
Z80185/Z80195
S
MART
P
ERIPHERAL
C
ONTROLLES
DS971850301
Zilog
CPU CONTROL REGISTER
The CPU Control Register allows the programmer to select
options that directly affect the CPU performance as well as
controlling the STANDBY operating mode of the chip. The
CPU Control Register (CCR) allows the programmer to
change the divide-by-two internal clock to divide-by-one.
In addition, applications where EMI noise is a problem, the
Z8S180 can reduce the output drivers on selected groups
of pins to 33 percent of normal pad driver capability which
minimizes the EMI noise generated by the part (Figure 65).
0
0
0
0
0
0
0
0
D7 D6 D5 D4 D3 D2 D1 D0
LNCPUCTL
0 = Standard Drive
1 = 33% Drive On CPU
Control Signals
CPU Control Register (CCR) Addr 1FH
LNAD/DATA
0 = Standard Drive
1 = 33% Drive On
A19-A0, D7-D0
LNIO
0 = Standard Drive
1 = 33% Drive on Certain
External I/O
Standby/Idle Enable
00 = No Standby
01 = Idle After Sleep
10 = Standby After Sleep
11 = Standby After Sleep
64 Cycle Exit
(Quick Recovery)
LNPHI
0 = Standard Drive
1 = 33% Drive On
EXTPHI Clock
BREXT
0 = Ignore BUSREQ
In Standby/Idle
1 = Standby/Idle Exit
on BUSREQ
Clock Divide
0 = XTAL/2
1 = XTAL/1
New Z8S180 Register
Figure 65. CPU Control Register
相關(guān)PDF資料 |
PDF描述 |
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| Z80195 | SMART PERIPHERAL CONTROLLERS |
| Z8019520FSC | SMART PERIPHERAL CONTROLLERS |
| Z8018933FSC | GENERAL-PURPOSE EMBEDDED CONTROLLERS |
| Z8L189 | GENERAL-PURPOSE EMBEDDED CONTROLLERS |
| Z8L18920ASC | GENERAL-PURPOSE EMBEDDED CONTROLLERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Z8018533FSC | 制造商:ZILOG 制造商全稱(chēng):ZILOG 功能描述:SMART PERIPHERAL CONTROLLERS |
| Z80189 | 制造商:ZILOG 制造商全稱(chēng):ZILOG 功能描述:Z8018x Family MPU |
| Z8018933ASC | 制造商:ZILOG 制造商全稱(chēng):ZILOG 功能描述:GENERAL-PURPOSE EMBEDDED CONTROLLERS |
| Z8018933FSC | 制造商:ZILOG 制造商全稱(chēng):ZILOG 功能描述:GENERAL-PURPOSE EMBEDDED CONTROLLERS |
| Z8018X | 制造商:ZILOG 制造商全稱(chēng):ZILOG 功能描述:Family MPU |
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