AT89C5131A-S3SUL Atmel, AT89C5131A-S3SUL Datasheet - Page 60

• Manufacturer Part Number: AT89C5131A-S3SUL
• Description: MCU 8051 32K FLASH USB 52-PLCC
• Manufacturer: Atmel
• Series: AT89C513xr

Specifications of AT89C5131A-S3SUL

• Core Processor: C52X2
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: LED, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: 2-Wire, EUART, SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3 bit
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89STK-05
• Minimum Operating Temperature: - 40 C
• For Use With: AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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AT89C5131A-L
Table 51. PCA Module Modes (CCAPMn Registers)
There are two additional registers associated with each of the PCA modules. They are
CCAPnH and CCAPnL and these are the registers that store the 16-bit count when a
capture occurs or a compare should occur. When a module is used in the PWM mode
these registers are used to control the duty cycle of the output (see Table 52 and
Table 53)
ECOMn
X
X
X
0
1
1
1
1
CAPPn
0
1
0
1
0
0
0
0
CAPNn
0
0
1
1
0
0
0
0
MATn
0
0
0
0
1
1
0
1
TOGn
0
0
0
0
0
1
0
X
PWM
m
0
0
0
0
0
0
1
0
ECCF
n
0
X
X
X
X
X
0
X
Module Function
16-bit capture by a positive-
edge trigger on CEXn
16-bit capture by a negative
trigger on CEXn
16-bit capture by a transition on
CEXn
16-bit Software Timer/Compare
mode.
16-bit High Speed Output
8-bit PWM
Watchdog Timer (module 4
only)
No Operation
4338F–USB–08/07