AT89C5132-ROTIL Atmel, AT89C5132-ROTIL Datasheet - Page 126
![IC 8051 MCU FLASH 64K USB 80TQFP](/photos/12/13/121358/313-80-tqfp_sml.jpg)
AT89C5132-ROTIL
Manufacturer Part Number
AT89C5132-ROTIL
Description
IC 8051 MCU FLASH 64K USB 80TQFP
Manufacturer
Atmel
Series
AT89C513xr
Datasheets
1.AT89C5132-ROTUL.pdf
(182 pages)
2.AT89C5132-ROTUL.pdf
(38 pages)
3.AT89C5132-ROTIL.pdf
(33 pages)
Specifications of AT89C5132-ROTIL
Core Processor
C52X2
Core Size
8-Bit
Speed
20MHz
Connectivity
IDE/ATAPI, I²C, MMC, PCM, SPI, UART/USART, USB
Peripherals
I²S, POR, WDT
Number Of I /o
44
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 2x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TQFP, 80-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Figure 19-9. Master SPI Polling Policy Flows
19.3.5
126
AT89C5132
Master Mode with Interrupt Policy
Figure 19-10 shows the initialization phase and the transfer phase flows using the interrupt pol-
icy. Using this flow prevents any overrun error occurrence.
•
•
•
Reading SPSTA at the beginning of the ISR is mandatory for clearing the SPIF flag. Clear is
effective when reading SPDAT.
The bit rate is selected according to Table 97.
The transfer format depends on the slave peripheral.
SS may be deasserted between transfers depending also on the slave peripheral.
program CPOL & CPHA
Select Master Mode
SPI Initialization
Disable Interrupt
Polling Policy
program SPR2:0
Select Bit Rate
Select Format
Enable SPI
MSTR = 1
SPEN = 1
SPIE = 0
Write Data in SPDAT
Get Data Received
End Of Transfer?
Polling Policy
Deselect Slave
Last Transfer?
SPI Transfer
Start Transfer
Read SPDAT
Select Slave
SPIF = 1?
Pn.x = H
Pn.x = L
4173E–USB–09/07
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