AT89C5130A-M Atmel Corporation, AT89C5130A-M Datasheet - Page 66
AT89C5130A-M
Manufacturer Part Number
AT89C5130A-M
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(188 pages)
2.AT89C5130A-M.pdf
(4 pages)
3.AT89C5130A-M.pdf
(34 pages)
Specifications of AT89C5130A-M
Flash (kbytes)
16 Kbytes
Max. Operating Frequency
48 MHz
Cpu
8051-12C
Max I/o Pins
34
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
1
Sram (kbytes)
1.25
Eeprom (bytes)
1024
Self Program Memory
API
Operating Voltage (vcc)
2.7 to 5.5
Timers
4
Isp
UART/USB
Watchdog
Yes
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Figure 14-4. PCA Compare Mode and PCA Watchdog Timer
14.3
66
High Speed Output Mode
CCAPnH
AT89C5130A/31A-M
Write to
1
CCAPnL
Write to
0
Note:
Before enabling ECOM bit, CCAPnL and CCAPnH should be set with a non zero value, other-
wise an unwanted match could happen. Writing to CCAPnH will set the ECOM bit.
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.
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 14-5).
A prior write must be done to CCAPnL and CCAPnH before writing the ECOMn bit.
Reset
Enable
1. Only for Module 4
CCAPnH
CH
PCA Counter/Timer
16-bit Comparator
CIDL
CF
ECOMn
WDTE
CCAPnL
CR
CL
CAPPn
Match
CAPNn MATn TOGn PWMn ECCFn
CCF4
CCF3
CCF2 CCF1 CCF0
CPS1 CPS0
ECF
CCON
0xD8
CCAPMn, n = 0 to 4
0xDA to 0xDE
CMOD
0xD9
PCA IT
RESET
4337K–USB–04/08
(1)
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