SI2457-C-FT Silicon Laboratories Inc, SI2457-C-FT Datasheet - Page 64

• Manufacturer Part Number: SI2457-C-FT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-FT

• Package / Case: 24-TSSOP
• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel, UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Frequency: 4.92 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current: 26 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Si2457/34/15/04
7. Parallel Interface Registers
Parallel Interface 0 (0x00)
Reset settings = 0x00
64
Name
Type
Bit
7:0
Bit
TX/RX[7:0] Parallel Interface Transmit/Receive.
Name
D7
D6
This register functions similarly to the serial port TX pin on writes to the parallel port, and sim-
ilarly to the serial port RX pin on reads from the parallel port.
D5
D4
TX/RX[7:0]
R/W
D3
Rev. 1.1
D2
Function
D1
D0