參數(shù)資料
型號(hào)： Z86C08
廠商： ZiLOG, Inc.
英文描述： CMOS 8-BIT LOW-COST 1K/2K-ROM MICROCONTROLLERS
中文描述： 的CMOS 8位的低費(fèi)用1K/2K-ROM微控制器
文件頁數(shù)： 21/34頁
文件大?。?/td> 207K
代理商： Z86C08
Z86C04/C08
Zilog
CMOS 8-Bit Low-Cost 1K/2K-ROM Microcontrollers
DS97DZ80502
P R E L I M I N A R Y
21
1
FUNCTIONAL DESCRIPTION
RESET.
Upon power-up the Power-On Reset circuit waits
for T
POR
ms, plus 18 clock cycles, and then starts program
execution at address%000C (Hex) (Figure 10). The device
control registers’ reset value is shown in Table 2.
Figure 9. Internal Reset Configuration
Table 1. Z86C04/C08 & C05/C07 Control Registers
Reset Condition
D5
D4
U
U
U
U
U
U
0
0
0
0
0
0
U
U
U
U
0
0
Addr.
03H (3)*
02H (2)*
00H (0)*
FFH(255)
FFH (254)
FDH (253)
FCH (252)
FBH (251)
FAH (250)
Reg.
Port 3
Port 2
Port 0
SPL
GPR
RP
FLAGS
IMR
IRQ
D7
U
U
U
0
0
0
U
0
U
D6
U
U
U
0
0
0
U
U
U
D3
U
U
U
0
0
0
U
U
0
D2
U
U
U
0
0
0
U
U
0
D1
U
U
U
0
0
0
U
U
0
D0
U
U
U
0
0
0
U
U
0
Comments
IRQ3 is used
for positive
edge detection
F9H (249)
F8H (248)*
F7H (247)*
F6H (246)*
IPR
P01M
P3M
P2M
U
U
U
1
U
U
U
1
U
U
U
1
U
0
U
1
U
U
U
1
U
U
U
1
U
0
0
1
U
1
0
1
Inputs after
reset
F5H (245)
F4H (244)
F3H (243)
F2H (242)
F1H (241)
PRE0
T0
PRE1
T1
TMR
U
U
U
U
0
U
U
U
U
0
U
U
U
U
0
U
U
U
U
0
U
U
U
U
0
U
U
U
U
0
U
U
0
U
0
0
U
0
U
0
Note:
*Registers are not reset after a STOP-Mode Recovery using P27 pin.
A subsequent reset will cause these control registers to be re-configured as shown in
Table 2 and the user must avoid bus contention on the port pins or it may affect device reliability.
POR
(Cold Start)
P27
(Stop Mode)
Delay Line
TPOR ms
18 CLK
Reset Filter
Chip
Reset
XTAL OSC
INT OSC
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