HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 38

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

1.7.6
Table 1.2 lists the maximum bit rates supported by the MSCI in the SCA (when system clock
(f ) = 10 MHz).
Table 1.2
Frequency
(f )
10 MHz*
16.7 MHz*
Notes: 1. 17.6 Mbps
Rev. 0, 07/98, page 22 of 453
5
2. f
3. Same maximum transfer rate when receive clock noise is suppressed
4. Depends on setting of MSCI mode register 1 (MD1)
5. SCA (HD64570CP, HD64570F)
6. f
7. f
8. f
9. f
10. High-speed SCA (HD64570CP16, HD64570F16)
10
Maximum Bit Rates
Protocol
Mode
Asynchronous
Byte synchronous 1/1
Bit synchronous
HDLC mode
Asynchronous
Byte synchronous 1/1
Bit synchronous
HDLC mode
Maximum Bit Rates
(sampling clock multiplier)
2.5
2
3
1.4
(clock mode)
(clock mode)
(clock mode)
(sampling clock multiplier)
Clock
Mode*
1/64
1/32
1/16
1/1
1/1
1/64
1/32
1/16
1/1
1/1
4
External
Clock
62.5k*
125k*
250k*
4.0M*
7.1M*
7.1M*
104k*
208k*
416k*
6.67M*
12M*
12M*
9
9
6
6
6
6
6
6
9
9
6
6
BRG
78.1k*
156.3k*
312.5k*
3.3M*
5M*
5M*
130k*
260k*
521k*
5.56M*
8.3M*
8.3M*
7
7
7
7
7
8
7
7
7
Maximum Transfer Rate (bps)
8
7
7
2.2M 1.1M 0.55M 1.25M 0.62M 0.31M
2.2M 1.1M 0.55M 1.25M 0.62M 0.31M
2.2M 1.1M 0.55M 2.08M 1.04M 0.52M
2.2M 1.1M 0.55M 2.08M 1.04M 0.52M
Sampling Clock:
8
External*
16
Clock Extraction
1
32
8
Sampling Clock:
BRG*
16
2, 3
32