參數(shù)資料
型號(hào): 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): 86/174頁
文件大?。?/td> 1304K
代理商: S1C88848D0A0100
S1C88848 TECHNICAL MANUAL
EPSON
11
4 INITIAL RESET
4 INITIAL RESET
Initial reset in the S1C88848 is required in order to initialize circuits. This chapter describes initial
reset factors and the initial settings for internal registers.
4.1 Initial Reset Factors
There are two initial reset factors for the S1C88848
as shown below.
(1)
___________
RESET terminal
(2) Simultaneous LOW level input at input port
terminals K00–K03.
Figure 4.1.1 shows the configuration of the initial
reset circuit.
The CPU and peripheral circuits are initialized by
means of initial reset factors. When the factor is
canceled, the CPU commences reset exception
processing. (See "S1C88 Core CPU Manual".)
When this occurs, reset exception processing
vectors, Bank 0, 000000H–000001H from program
memory are read out and the program (initializa-
tion routine) which begins at the readout address is
executed.
K00
Input port K00
K01
Input port K01
K02
Input port K02
K03
Input port K03
VDD
RESET
SLEEP status
Time authorize
circuit
Oscillation stability waiting signal
Internal initial reset
Mask option
Fig. 4.1.1 Configuration of initial reset circuit
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