HD64570F Renesas Electronics America, HD64570F Datasheet - Page 121
HD64570F
Manufacturer Part Number
HD64570F
Description
IC SCA SRL COMM ADAPTER 88QFP
Manufacturer
Renesas Electronics America
Datasheet
1.HD64570F.pdf
(469 pages)
Specifications of HD64570F
Applications
ISDN
Interface
Serial
Voltage - Supply
4.5 V ~ 5.5 V
Package / Case
88-QFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Bits 7 5 (PRTCL2 PRTCL0: Protocol Mode): Specify the transmission protocol (transmission
control procedure). These bits must be initialized with a channel reset command before the bit
setting is changed. Otherwise, normal operation is not guaranteed.
Bit 4 (AUTO: Auto-Enable): Controls the modem control signals (CTS, DCD, and RTS).
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
PRTCL2, PRTCL1, PRTCL0 = 0, 0, 0: Specifies asynchronous mode
PRTCL2, PRTCL1, PRTCL0 = 0, 0, 1: Specifies byte synchronous mono-sync mode
PRTCL2, PRTCL1, PRTCL0 = 0, 1, 0: Specifies byte synchronous bi-sync mode
PRTCL2, PRTCL1, PRTCL0 = 0, 1, 1: Specifies byte synchronous external synchronous
mode
PRTCL2, PRTCL1, PRTCL0 = 1, 0, 0: Specifies bit synchronous HDLC mode
PRTCL2, PRTCL1, PRTCL0 = 1, 0, 1: Reserved
PRTCL2, PRTCL1, PRTCL0 = 1, 1, 0: Reserved
PRTCL2, PRTCL1, PRTCL0 = 1, 1, 1: Reserved
Notes:
Protocol mode
000:
001:
010:
011:
100:
101:
110:
111:
Asynchronous mode
Byte-sync
mono-sync mode
Byte-sync
Bi-sync mode
Byte-sync external
synchronous mode
Bit-sync HDLC mode
Reserved
Reserved
Reserved
1. Reserved. These bits always read 0 and must be set to 0.
2. Reserved. When these settings are selected, normal operation is not guaranteed.
3. X indicates any value (0 or 1).
PRTCL2 PRTCL1 PRTCL0AUTO
R/W
7
0
*2
*2
*2
R/W
6
0
Auto-enable
0:
1:
R/W
Auto-enable reset
Auto-enable set
5
0
CRC code calculation
•
0:
1:
Byte/Bit synchronous
R/W
mode
Disable
Enable
4
0
—
—
3
0
*1
CRCCC
R/W
—
2
0
*1
STOP1
CRC1
Rev. 0, 07/98, page 105 of 453
R/W
Stop bit length
•
00:
01:
10:
11:
CRC calculation
expression and
initial value
•
0X:
1X:
X0:
X1:
1
0
Asynchronous mode
Byte/Bit synchronous mode
1 bit
1.5 bits
2 bits
Reserved
CRC-16
CRC-CCITT
Initial value = all 0s
Initial value = all 1s
STOP0
CRC0
R/W
0
0
*3
*2
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