Registers; Index Register (Ir) - Samsung S3C2416 User Manual

S3C2416X RISC MICROPROCESSOR

8 REGISTERS

8.1 INDEX REGISTER (IR)

The index register is used for indexing a specific endpoint. In most cases, setting the index register value should
precede any other operation.
Register
IR 0x4980_0000
IR Bit
[31:16]
[15:4]
INDEX [3:0]
Address R/W
R/W Index Register
R/W
− Reserved
Reserved (Don't write to this field)
−
R/W Endpoint Number Select (0~6)
0000 = Endpoint0
0001 = Endpoint1
0010 = Endpoint2
0011 = Endpoint3
0100 = Endpoint4
0101 = Endpoint5
0110 = Endpoint6
0111 = Endpoint7
1000 = Endpoint8
Description
Description
USB2.0 DEVICE
Reset Value
0x00
Initial State
0000
0
0000
16-7