at75c220 ATMEL Corporation, at75c220 Datasheet - Page 91
at75c220
Manufacturer Part Number
at75c220
Description
Smart Internet Appliance Processor Siap
Manufacturer
ATMEL Corporation
Datasheet
1.AT75C220.pdf
(144 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 91 of 144
- Download datasheet (2Mb)
•
•
USART Receiver Holding Register
Name:
Access Type:Read-only
Reset Value: 0x0
•
USART Transmitter Holding Register
Name:
Access Type:Write-only
Reset Value: Undefined
•
TXEMPTY: Transmitter Empty
DMSI: Delta Modem Status Indication Interrupt
RXCHR: Received Character
TXCHR: Character to be Transmitted
0 = There are characters in either US_THR or the Transmit Shift Register or a break is being transmitted.
1 = There are no characters in US_THR and the Transmit Shift Register and break is not active.
Equal to zero when the USART is disabled or at reset. Transmitter enable command (in US_CR) sets this bit to one.
0 = No effect.
1 = There has been a change in the modem status delta bits since the last reset status bits command.
Last character received if RXRDY is set. When number of data bits is less than eight, the bits are right-aligned.
All unused bits read as zero.
Next character to be transmitted after the current character if TXRDY is not set. When number of data bits is less than
eight, the bits are right-aligned.
31
23
15
31
23
15
–
–
–
7
–
–
–
7
US_RHR
US_THR
30
22
14
30
22
14
–
–
–
6
–
–
–
6
29
21
13
29
21
13
–
–
–
5
–
–
–
5
28
20
12
28
20
12
–
–
–
4
–
–
–
4
RXCHR
TXCHR
27
19
11
27
19
11
–
–
–
3
–
–
–
3
26
18
10
26
18
10
–
–
–
2
–
–
–
2
25
17
25
17
–
–
9
–
1
–
–
9
–
1
RXCHR
TXCHR
24
16
24
16
–
–
8
0
–
–
8
0
91
Related parts for at75c220
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: