AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 79
![IC 8051 MCU FLASH 32K 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT89C5122D-PSTUM
Manufacturer Part Number
AT89C5122D-PSTUM
Description
IC 8051 MCU FLASH 32K 64QFN
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-PSTUM
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-QFN
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Table 46. Smart Card UART Interface Status Register -
SCISR (S:ADh, SCRS=0)
Reset Value = 1000 0000b
4202F–SCR–07/2008
Bit Number
SCTBE
7
6
5
4
3
2
1
0
7
Bit Mnemonic
ICARDOVF
VCARDOK
CARDIN
SCWTO
SCTBE
CARDIN
SCRC
SCTC
SCPE
6
Description
UART Transmit Buffer Empty Status
This bit is set by hardware when the Transmit Buffer is copied to the transmit shift register of the Smart Card
UART.
It is cleared by hardware when SCIBUF register is written.
Card Presence Status
This bit is set by hardware if there is a card presence (debouncing filter has to be done by software).
This bit is cleared by hardware if there is no card presence.
Card Current Overflow Status
This bit is set when the current on card is above the limit specified by bit OVFADJ in DCCKPS register (Table 61
on page 92)
It is cleared by hardware.
Waiting Time Counter Timeout Status
This bit is set by hardware when the Waiting Time Counter has expired.
It is cleared by the reload of the counter or by the reset of the SCIB.
UART Transmitted Character Status
This bit is set by hardware when the Smart Card UART has transmitted a character. If character repetition mode is
selected, this bit will be set only after a successful transmission. If the last allowed repetition in not successful, this
bit will not be set.
It is cleared by software when this register is read.
UART Received Character Status
This bit is set by hardware when the Smart Card UART has received a character
It is cleared by hardware when SCIBUF register is read. If character repetition mode is selected, this bit will be set
only after a successful reception. If the last allowed repetition is still unsuccessful, this bit will be set to let the user
read the erroneous value if necessary.
Character Reception Parity Error Status
This bit is set when a parity error is detected on the received character.
It is cleared by software when this register is read. If character repetition mode is selected, this bit will be set only
if the ICC report an error on the last allowed repetition of a TERMINAL transmission, or if a reception parity error
is found on the last allowed ICC character repetition.
Card Voltage Correct Status
This bit is set when the output voltage is within the voltage range specified by VCARD[1:0] in SCICR register.
It is cleared otherwise.
ICARDOVF
5
VCARDOK
4
SCWTO
3
AT83R5122, AT8xC5122/23
SCTC
2
SCRC
1
SCPE
0
79
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