TS87C51RC2-LCB Atmel, TS87C51RC2-LCB Datasheet - Page 32
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TS87C51RC2-LCB
Manufacturer Part Number
TS87C51RC2-LCB
Description
IC MCU 8BIT 32K OTP 40MHZ 44PLCC
Manufacturer
Atmel
Series
87Cr
Specifications of TS87C51RC2-LCB
Core Processor
8051
Core Size
8-Bit
Speed
30/20MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
6.5.3. High Speed Output Mode
In this mode the CEX output (on port 1) associated with the PCA module will toggle each time a match
occurs between the PCA counter and the module's capture registers. To activate this mode the TOG, MAT,
and ECOM bits in the module's CCAPMn SFR must be set (See Figure 11).
A prior write must be done to CCAPnL and CCAPnH before writing the ECOMn bit.
Before enabling ECOM bit, CCAPnL and CCAPnH should be set with a non zero value, otherwise an unwanted
match could happen.
Once ECOM set, writing CCAPnL will clear ECOM so that an unwanted match doesn’t occur while modifying
the compare value. Writing to CCAPnH will set ECOM. For this reason, user software should write CCAPnL first,
and then CCAPnH. Of course, the ECOM bit can still be controlled by accessing to CCAPMn register.
32
CCAPnH
Write to
1
CCAPnL
Write to
0
Reset
Enable
PCA counter/timer
CCAPnH
Figure 11. PCA High Speed Output Mode
CH
16 bit comparator
CF
ECOMn
CCAPnL
CR
CL
CAPPn
Match
CAPNn MATn TOGn PWMn ECCFn
CCF4 CCF3
CCF2
CCF1
CCF0
Rev. C - 06 March, 2001
CCON
0xD8
CCAPMn, n = 0 to 4
0xDA to 0xDE
PCA IT
CEXn