AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 59
AT89C5131A-L
Manufacturer Part Number
AT89C5131A-L
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(34 pages)
2.AT89C5131A-L.pdf
(4 pages)
3.AT89C5131A-L.pdf
(186 pages)
Specifications of AT89C5131A-L
Flash (kbytes)
32 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)
3.0 to 3.6
Timers
4
Isp
UART/USB
Watchdog
Yes
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Table 51 shows the CCAPMn settings for the various PCA functions.
Table 50. CCAPMn Registers (n = 0-4)
CCAPM0 - PCA Module 0 Compare/Capture Control Register (0DAh)
CCAPM1 - PCA Module 1 Compare/Capture Control Register (0DBh)
CCAPM2 - PCA Module 2 Compare/Capture Control Register (0DCh)
CCAPM3 - PCA Module 3 Compare/Capture Control Register (0DDh)
CCAPM4 - PCA Module 4 Compare/Capture Control Register (0DEh)
Reset Value = X000 0000b
Not bit addressable
Number
Bit
the CAPP bit enables the positive edge. If both bits are set both edges will be
enabled and a capture will occur for either transition.
The last bit in the register ECOM (CCAPMn.6) when set enables the comparator
function.
7
7
6
5
4
3
2
1
0
-
Mnemonic
ECOMn
ECOMn
CAPNn
CAPPn
ECCFn
PWMn
TOGn
MATn
Bit
6
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Enable Comparator
Cleared to disable the comparator function.
Set to enable the comparator function.
Capture Positive
Cleared to disable positive edge capture.
Set to enable positive edge capture.
Capture Negative
Cleared to disable negative edge capture.
Set to enable negative edge capture.
Match
When MATn = 1, a match of the PCA counter with this module's
compare/capture register causes the
CCFn bit in CCON to be set, flagging an interrupt.
Toggle
When TOGn = 1, a match of the PCA counter with this module's
compare/capture register causes the CEXn pin to toggle.
Pulse Width Modulation Mode
Cleared to disable the CEXn pin to be used as a pulse width modulated output.
Set to enable the CEXn pin to be used as a pulse width modulated output.
Enable CCF Interrupt
Cleared to disable compare/capture flag CCFn in the CCON register to
generate an interrupt.
Set to enable compare/capture flag CCFn in the CCON register to generate an
interrupt.
CAPPn
5
CAPNn
4
MATn
3
TOGn
2
PWMn
1
ECCFn
0
59
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