UPD720130GC-9EU-SIN 查看數據表（PDF） - NEC => Renesas Technology

零件编号

产品描述 (功能)

生产厂家

UPD720130GC-9EU-SIN

USB2.0 to IDE Bridge

NEC => Renesas Technology 

µPD720130

The IDE bus arbitration will be done by following sequence. The µPD720130 will confirm whether other

IDE controller requires or is using IDE bus or not. If other IDE controller does not require or does not use IDE

bus, the µPD720130 will use IDE bus.

Figure 2-2. IDE Bus Arbitration Sequence

START

Chip Init

CMB_STATE = 1?

No.

Yes.

CMB_BSY = 1

Other IDE controller requires or

is using IDE bus.

CMB_STATE = 0?

No.

Yes.

CMB_BSY = 0

The µPD720130 can not use IDE bus

IDE bus is used

by the µPD720130

END

12

Data Sheet S16302EJ3V0DS

Share Link: