HD64570F16 Renesas Electronics America, HD64570F16 Datasheet - Page 36

• Manufacturer Part Number: HD64570F16
• Description: IC SCA SRL COMM ADAPTER 88QFP
• Manufacturer: Renesas Electronics America

Specifications of HD64570F16

• Applications: ISDN
• Interface: Serial
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 88-QFP
• Mounting Type: Surface Mount
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -20C to 75C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1.7.5
MSCI channels 0 and 1 in the SCA are full-duplex transceivers that support asynchronous, byte-
synchronous, and bit-synchronous transmission formats. The transmit clock (figure 1.9) can be
selected independently on each channel. The selectable clock sources include the built-in baud rate
generator, external clock input, and the receive clock (figure 1.10).
Rev. 0, 07/98, page 20 of 453
TXC
line input
Receive
clock
Transmit/Receive Clock Selection
transmitting)
Baud rate
generator
(for
Figure 1.9 Transmit Clock Source
f
(TMC: 1 to 256, TXBR: 0 to 9)
BRG
=
TMC
f
÷ 2
TXBR
TXS: MSCI TX clock source register
TXCS 2 to 0
(TXS bits 6 to 4)
Transmit
100
000
110
selector
clock
* Asynchronous mode
Transmit clock
(1/1, 1/16*, 1/32*, or
1/64* clock mode)