AT89C5122D-RDVIM Atmel, AT89C5122D-RDVIM Datasheet - Page 134
AT89C5122D-RDVIM
Manufacturer Part Number
AT89C5122D-RDVIM
Description
IC 8051 MCU W/SMART CARD 64VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-RDVIM
Core Processor
8051
Core Size
8-Bit
Speed
48MHz
Connectivity
SmartCard, SPI, UART/USART, USB
Peripherals
LED, POR, WDT
Number Of I /o
46
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C5122D-RDTIM
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AT83R5122, AT8xC5122/23
Table 78. Slave Address Mask Register for UART - SADEN (B9h)
Reset Value = 0000 0000b
Table 79. Slave Address Register for UART - SADDR (A9h)
Reset Value = 0000 0000b
Table 80. Serial Buffer Register for UART - SBUF (99h)
Reset Value = XXXX XXXXb
Table 81. Baud Rate Reload Register for the internal baud rate generator,
UART - BRL (9Ah)
Reset Value = 0000 0000b
Table 82. Baud Rate Control Register - BDRCON - (9Bh)
Reset Value = XXX0 0000b (Not bit addressable)
Number
7 - 5
Bit
4
3
2
1
0
7
7
7
7
7
-
Mnemonic Description
M0SRC
RBCK
TBCK
BRR
SPD
Bit
-
6
6
6
6
6
-
Reserved
The value read from this bit is indeterminate. Do not change these bits.
Baud Rate Run Control bit
Cleared to stop the internal Baud Rate Generator.
Set to start the internal Baud Rate Generator.
Transmission Baud rate Generator Selection bit for UART
Cleared to select Timer 1 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Reception Baud Rate Generator Selection bit for UART
Cleared to select Timer 1 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Baud Rate Speed Control bit for UART
Cleared to select the SLOW Baud Rate Generator.
Set to select the FAST Baud Rate Generator.
Baud Rate Source select bit in Mode 0 for UART
Cleared to select F
Set to select the internal Baud Rate Generator for UART in mode 0.
5
5
5
5
5
-
CK_SI
BRR
4
4
4
4
4
/6 as the Baud Rate Generator.
TBCK
3
3
3
3
3
RBCK
2
2
2
2
2
SPD
1
1
1
1
1
4202F–SCR–07/2008
M0SRC
0
0
0
0
0
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