参数资料
型号: SST89E54RD2A-40-I-TQJE
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44
封装: ROHS COMPLIANT, MS-026ACB, TQFP-44
文件页数: 24/84页
文件大小: 1755K
代理商: SST89E54RD2A-40-I-TQJE
30
Data Sheet
FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
SST89V54RD2A/RDA / SST89V58RD2A/RDA
2007 Silicon Storage Technology, Inc.
S71339-01-000
1/07
Symbol
Function
CIDL
Counter Idle Control:
0: Programs the PCA Counter to continue functioning during idle mode
1: Programs the PCA Counter to be gated off during idle
WDTE
Watchdog Timer Enable:
0: Disables Watchdog Timer function on PCA module 4
1: Enables Watchdog Timer function on PCA module 4
-
Not implemented, reserved for future use.
Note: User should not write ‘1’s to reserved bits. The value read from a reserved bit is indeterminate.
CPS1
PCA Count Pulse Select bit 1
CPS0
PCA Count Pulse Select bit 2
ECF
PCA Enable Counter Overflow interrupt:
0: Disables the CF bit in CCON
1: Enables CF bit in CCON to generate an interrupt
PCA Timer/Counter Mode Register1 (CMOD)
Location
76543210
Reset Value
D9H
CIDL
WDTE
-
CPS1
CPS0
ECF
00xxx000b
1. Not bit addressable
CPS1
CPS0
Selected
PCA Input1
1. fOSC = oscillator frequency
00
0
Internal clock, fOSC/6 in 6 clock mode (fOSC/12 in 12 clock mode)
01
1
Internal clock, fOSC/2 in 6 clock mode (fOSC/4 in 12 clock mode)
10
2
Timer 0 overflow
11
3
External clock at ECI/P1.2 pin
(max. rate = fOSC/4 in 6 clock mode, fOSC/8 in 12 clock mode)
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