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SEC1210 Datasheet(PDF) 44 Page - Microchip Technology

Part # SEC1210
Description  Smart Card Bridge to USB and UART Interfaces
PDF  218 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

SEC1210 Datasheet(HTML) 44 Page - Microchip Technology

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SEC1110/SEC1210
DS00001561C-page 44
 2013 - 2016 Microchip Technology Inc.
9.1.26
SPI1 SERIAL PERIPHERAL DATA REGISTER – SPDAT
The SPDAT Register is a read/write buffer for the “receive data” register. While writing to the SPDAT, data is placed
directly into the shift register (there is no transmit buffer).
9.2
Special Function Registers Summary
The R8051XC can access up to 128 Special Function Registers. These registers can only be accessed directly.
TABLE 9-36:
SPI1 TRANSFER RATE
SPR2
SPR1
SPR0
SERIAL PERIPHERAL RATE (SPI1_RATE)
0
0
0
spi1_clk/2
0
0
1
spi1_clk/4
0
1
0
spi1_clk/8
01
1spi1_clk/16
10
0spi1_clk/32
10
1spi1_clk/64
1
1
0
spi1_clk/128
1
1
1
The Master clock is not generated (when SPCON.cpol=1, the SPI1_CLK
output is high level, otherwise is low level)
TABLE 9-37:
SPI1 SERIAL PERIPHERAL DATA REGISTER
SPDAT
(SFR 0XE3 - RESET=0X00)
SERIAL PERIPHERAL (SPI1) DATA REGISTER
BIT
NAME
R/W
DESCRIPTION
7:0
spdat[7:0]
R/W
Serial Peripheral Data:
Reading returns the value located in the receive buffer, not the shift
register.
TABLE 9-38:
SPECIAL FUNCTION REGISTERS SUMMARY
REGISTER
ADDRESS
DEFAULT
DESCRIPTION
SP
81h
07h
Stack Pointer
DPL
82h
00h
Data Pointer 0 Low
DPH
83h
00h
Data Pointer 0 High
DPL1
84h
00h
Data Pointer 1 Low
DPH1
85h
00h
Data Pointer 1 High
WDTREL
86h
00h
Watchdog Timer Reload Register
PCON
87h
00h
Power Control
TCON
88h
00h
Timer/Counter Control Register
TMOD
89h
00h
Timer Mode Register
TL0
8Ah
00h
Timer 0, Low Byte
TL1
8Bh
00h
Timer 1, Low Byte
TH0
8Ch
00h
Timer 0, High Byte
TH1
8Dh
00h
Timer 1, High Byte
DPS
92h
00h
Data Pointer Select Register



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