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T80C5112-RKSCL 数据表(PDF) 50 Page - ATMEL Corporation

部件名 T80C5112-RKSCL
功能描述  8-bit Microcontroller with A/D converter
PDF  97 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

T80C5112-RKSCL 数据表(HTML) 50 Page - ATMEL Corporation

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Rev. B - November 10, 2000
Preliminary
T80C5112
Figure 22. PCA Timer/Counter
Table 26. CMOD: PCA Counter Mode Register
CMOD
Address 0D9H
CIDL
WDTE
-
-
-
CPS1
CPS0
ECF
Reset value
0
0
X
X
X
0
0
0
Symbol
Function
CIDL
Counter Idle control: CIDL = 0 programs the PCA Counter to continue functioning during
idle Mode. CIDL = 1 programs it to be gated off during idle.
WDTE
Watchdog Timer Enable: WDTE = 0 disables Watchdog Timer function on PCA Module 4.
WDTE = 1 enables it.
-
Not implemented, reserved for future use.a
a.
User software should not write 1s to reserved bits. These bits may be used in future 8051 family
products to invoke new features. In that case, the reset or inactive value of the new bit will be 0, and its
active value will be 1. The value read from a reserved bit is indeterminate.
CPS1
PCA Count Pulse Select bit 1.
CPS0
PCA Count Pulse Select bit 0.
CPS1
CPS0
Selected PCA input.b
b.
fosc = oscillator frequency
0
0
Internal clock fosc/12 ( Or fosc/6 in X2 Mode).
0
1
Internal clock fosc/4 ( Or fosc/2 in X2 Mode).
1
0
Timer 0 Overflow
1
1
External clock at ECI/P1.2 pin (max rate = fosc/8)
ECF
PCA Enable Counter Overflow interrupt: ECF = 1 enables CF bit in CCON to generate an
interrupt. ECF = 0 disables that function of CF.
CIDL
CPS1
CPS0
ECF
It
CH
CL
16 bit up/down counter
To PCA
modules
Fosc /12
Fosc / 4
T0 OVF
P1.2
Idle
CMOD
0xD9
WDTE
CF
CR
CCON
0xD8
CCF4
CCF3
CCF2
CCF1
CCF0
overßow



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