參數(shù)資料
型號: V30MZ
英文描述: V30MZ(TM) Hardware (Preliminary) | User's Manual[01/2002]
中文描述: V30MZ(TM)硬件(初步)|用戶手冊[01/2002]
文件頁數(shù): 69/89頁
文件大小: 418K
代理商: V30MZ
69
CHAPTER 7 RESET FUNCTIONS
When a high level is input to the RESET pin for 4 clocks or more, each output pin of the V30MZ changes to the
statuses shown in Table 7-1. They retain these values while the high level is input.
A setup time and hold time are prescribed for the rising edge of the CLK pin for RESET input. Be sure to perform
RESET input so as to satisfy these prescriptions.
Table 7-1. Status of Output Pins after Reset
Pin
Status after Reset
A19 to A0
High-level output
DO15 to DO0
Undefined
UBEB
High-level output
BUSLOCKB
BS3 to BS0
HLDAK
Low-level output
TBO42 to TBO0
High impedance
Each register is initialized to the value shown in Table 7-2 following reset.
Table 7-2. Initial Value of Registers after Reset
Register
Initial Value
PC
0000H
PFP
PS
FFFFH
SS, DS0, DS1
0000H
AW, BW, CW, DW
Undefined
SP, BP
IX, IY
MD
V
DIR
IE
BRK
Higher
1
1
1
1
0
0
0
0
S
Z
AC
P
CY
Lower
0
0
0
0
0
0
1
0
PSW
When the signal input to the RESET pin goes back to low level, the V30MZ starts instruction prefetch from
address FFFF0H (segment value: FFFFH, offset value: 0000H).
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