參數(shù)資料
型號: S1C88848D0A0100
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC192
封裝: DIE-192
文件頁數(shù): 89/174頁
文件大小: 1304K
代理商: S1C88848D0A0100
S1C88848 TECHNICAL MANUAL
EPSON
13
4 INITIAL RESET
4.2 Initial Settings After Initial Reset
The CPU internal registers are initialized as follows
during initial reset.
Table 4.2.1 Initial settings
Register name
Code
Setting value
Data register A
Data register B
Index (data) register L
Index (data) register H
Index register IX
Index register IY
Program counter
Stack pointer
Base register
Zero flag
Carry flag
Overflow flag
Negative flag
Decimal flag
Unpack flag
Interrupt flag 0
Interrupt flag 1
New code bank register
Code bank register
Expand page register
Expand page register for IX
Expand page register for IY
A
B
L
H
IX
IY
PC
SP
BR
Z
C
V
N
D
U
I0
I1
NB
CB
EP
XP
YP
Undefined
0
1
01H
Undefined
00H
Bit length
8
16
8
1
8
*
Reset exception processing loads the preset
values stored in 0 bank, 000000H–000001H into
the PC. At the same time, 01H of the NB initial
value is loaded into CB.
Initialize the registers which are not initialized at
initial reset using software.
Since the internal RAM and display memory are
not initialized at initial reset, be sure to initialize
using software.
The respectively stipulated initializations are done
for internal peripheral circuits. If necessary, the
initialization should be done using software.
For initial value at initial reset, see the sections on
the I/O memory map and peripheral circuit
descriptions in the following chapter of this
Manual.
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