HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 138

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Bit 7: Reserved. This bit always reads 0 and must be set to 0.
Bits 6 4 (RXCS2 RXCS0: Receive Clock Source): Specify the receive clock source.
Bits 3 0 (RXBR3 RXBR0: Receiver Baud Rate): Used in conjunction with the time constant
register (TMC) to specify the baud rate of the baud rate generator in the receiver. For details, see
section 5.6, Baud Rate Generator.
Rev. 0, 07/98, page 122 of 453
Asynchronous/Byte synchronous/Bit synchronous mode
RXCS2 RXCS0 = 0, 0, 0:
suppressor does not function for the receive clock and receive data.
RXCS2 RXCS0 = 0, 1, 0:
suppressor of the ADPLL functions for the receive clock and receive data.
RXCS2 RXCS0 = 1, 0, 0:
is output from the RXC line.
RXCS2 RXCS0 = 1, 1, 0:
clock, which is output from the RXC line. The BRG output serves as the ADPLL operating
clock, and the noise suppressor functions for the receive data.
RXCS2 RXCS0 = 1, 1, 1:
clock. The RXC line input serves as the ADPLL operating clock, and the noise suppressor
functions for the receive data.
Other settings:
Asynchronous/Byte synchronous/Bit synchronous mode
RXBR3–RXBR0 = 0, 0, 0, 0:
RXBR3–RXBR0 = 0, 0, 0, 1:
RXBR3–RXBR0 = 0, 0, 1, 0:
RXBR3–RXBR0 = 0, 0, 1, 1:
RXBR3–RXBR0 = 0, 1, 0, 0:
RXBR3–RXBR0 = 0, 1, 0, 1:
RXBR3–RXBR0 = 0, 1, 1, 0:
RXBR3–RXBR0 = 0, 1, 1, 1:
RXBR3–RXBR0 = 1, 0, 0, 0:
RXBR3–RXBR0 = 1, 0, 0, 1:
RXBR3–RXBR0 = 1, 0, 1, 0:
RXBR3–RXBR0 = 1, 1, 1, 1:
Reserved.
Specifies the RXC line input as the receive clock. The noise
Specifies the RXC line input as the receive clock. The noise
Specifies the internal BRG output as the receive clock, which
Specifies the clock extracted by the ADPLL as the receive
Specifies the clock extracted by the ADPLL as the receive
Division ratio = 1/1
Division ratio = 1/2
Division ratio = 1/4
Division ratio = 1/8
Division ratio = 1/16
Division ratio = 1/32
Division ratio = 1/64
Division ratio = 1/128
Division ratio = 1/256
Division ratio = 1/512
Reserved
Reserved