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T89C51AC2-RLSI-M bảng dữ liệu(PDF) 78 Page - ATMEL Corporation

tên linh kiện T89C51AC2-RLSI-M
Giải thích chi tiết về linh kiện  8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
PDF  117 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C51AC2-RLSI-M bảng dữ liệu(HTML) 78 Page - ATMEL Corporation

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Draft.A - March 30, 2001
Preview - Confidential
T89C51AC2
15.4. 16-bit Software Timer Mode
The PCA modules can be used as software timers by setting both the ECOM and MAT bits in the modules
CCAPMn register. The PCA timer will be compared to the module’s capture registers and when a match occurs
an interrupt will occur if the CCFn (CCON SFR) and the ECCFn (CCAPMn SFR) bits for the module are both set.
Figure 67. PCA 16-bit Software Timer and High Speed Output Mode
CCAPnL
CCAPnH
-
ECOMn00MATnTOGn0ECCFn
70
CCAPMn Register
(n = 0, 4)
CH
CL
16-Bit
Comparator
Match
Enable
CCFn
CCON reg
PCA
Interrupt
Request
CEXn
Compare/Capture Module
PCA Counter
“0”
“1”
Reset
Write to
CCAPnL
Write to CCAPnH
For software Timer mode, set ECOMn and MATn.
For high speed output mode, set ECOMn, MATn and
TOGn.
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