HD64570F Renesas Electronics America, HD64570F Datasheet - Page 84

• Manufacturer Part Number: HD64570F
• Description: IC SCA SRL COMM ADAPTER 88QFP
• Manufacturer: Renesas Electronics America

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

Rev. 0, 07/98, page 68 of 453
CLK (CPU modes 1, 2, 3)
HOLD (CPU mode 0)
HOLDA (CPU mode 0)
BUSY
BEO
CLK (CPU modes 1, 2, 3)
HOLD (CPU mode 0)
HOLDA (CPU mode 0)
BUSY
BEO
CLK (CPU mode 0)
BUSREQ
(CPU modes 1, 2, 3)
BUSACK
(CPU modes 1, 2, 3)
CLK (CPU mode 0)
BUSREQ
(CPU modes 1, 2, 3)
BUSACK
(CPU modes 1, 2, 3)
Figure 3.6 Bus Arbitration Sequence examples
Slave
mode
Input
Input
Slave mode
T
Master mode
i
DMA cycle
Output
T
1
Master mode
T
T
Example a
Example b
3
i
Output
DMA cycle
T
1
T
3
Input
Slave mode
Slave mode
Input