27 vip fifo address (vip_fifo_r_w_addr), 28 vip fifo data (vip_fifo_data), Vip fifo address (vip_fifo_r_w_addr) – AMD Geode LX [email protected] User Manual

Page 507: Vip fifo data (vip_fifo_data), Xxxxxxxxh

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AMD Geode™ LX Processors Data Book

507

Video Input Port Register Descriptions

33234H

6.10.2.27 VIP FIFO Address (VIP_FIFO_R_W_ADDR)

6.10.2.28 VIP FIFO Data (VIP_FIFO_DATA)

VIP Memory Offset 70h
Type

R/W

Reset Value

00000000h

VIP_FIFO_R_W_ADDR Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

0

RSVD

FIFO_ADDRESS

VIP_FIFO_R_W_ADDR Bit Descriptions

Bit

Name

Description

31:9

RSVD

Reserved. Set to 0.

8:0

FIFO_ADDRESS

FIFO ADDRESS. FIFO address for which a FIFO read or write occurs. The data is writ-
ten/read via the FIFO Data register (VIP Memory Offset 74h). Note that the 256x64 bit
FIFO is mapped as a 512x32 bit memory.

VIP Memory Offset 74h
Type

R/W

Reset Value

xxxxxxxxh

VIP_FIFO_DATA Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

0

FIFO_DATA

VIP_FIFO_DATA Bit Descriptions

Bit

Name

Description

31:0

FIFO_DATA

FIFO Data. When the FF_R/W bit is set (VIP Memory Offset 04h[24] = 1), data written to
this register is stored in FIFO_ADDR (VIP Memory Offset 70h[7:0]). When the FF_R/W
bit is reset, data from the FIFO corresponding to the address in the FIFO_ADDR is
returned

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