AT89C5131A-TISIL Atmel, AT89C5131A-TISIL Datasheet - Page 58
![IC 8051 MCU FLASH 32K USB 28SOIC](/photos/6/82/68295/453-28-soic_sml.jpg)
AT89C5131A-TISIL
Manufacturer Part Number
AT89C5131A-TISIL
Description
IC 8051 MCU FLASH 32K USB 28SOIC
Manufacturer
Atmel
Series
AT89C513xr
Specifications of AT89C5131A-TISIL
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
18
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
28-SOIC (7.5mm Width)
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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Figure 29. PCA Interrupt System
58
AT89C5131A-L
PCA Timer/Counter
Module 0
Module 1
Module 2
Module 3
Module 4
CMOD.0
ECF
The watchdog timer function is implemented in module 4 (See Figure 31).
The PCA interrupt system is shown in Figure 29.
PCA Modules: each one of the five compare/capture modules has six possible func-
tions. It can perform:
•
•
•
•
•
•
In addition, module 4 can be used as a Watchdog Timer.
Each module in the PCA has a special function register associated with it. These regis-
ters are: CCAPM0 for module 0, CCAPM1 for module 1, etc. (see Table 50). The
registers contain the bits that control the mode that each module will operate in.
•
•
•
•
•
16-bit capture, positive-edge triggered
16-bit capture, negative-edge triggered
16-bit capture, both positive and negative-edge triggered
16-bit Software Timer
16-bit High-speed Output
8-bit Pulse Width Modulator
The ECCF bit (CCAPMn.0 where n = 0, 1, 2, 3, or 4 depending on the module)
enables the CCF flag in the CCON SFR to generate an interrupt when a match or
compare occurs in the associated module.
PWM (CCAPMn.1) enables the pulse width modulation mode.
The TOG bit (CCAPMn.2) when set causes the CEX output associated with the
module to toggle when there is a match between the PCA counter and the module's
capture/compare register.
The match bit MAT (CCAPMn.3) when set will cause the CCFn bit in the CCON
register to be set when there is a match between the PCA counter and the module's
capture/compare register.
The next two bits CAPN (CCAPMn.4) and CAPP (CCAPMn.5) determine the edge
that a capture input will be active on. The CAPN bit enables the negative edge, and
CF
ECCFn CCAPMn.0
CR
CCF4 CCF3 CCF2 CCF1 CCF0
IE.6
EC
IE.7
EA
priority decoder
CCON
0xD8
To Interrupt
4338F–USB–08/07
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