Samsung S3C2500B User Manual page 328

ETHERNET CONTROLLER
7.4.1.5 BDMA Transmit Buffer Descriptor Counter
Registers Address
BTXBDCNTA 0xF00A0010
BTXBDCNTB 0xF00C0010
Bit Number
[11:0] BDMA Tx buffer descriptor
Counter
7.4.1.6 BDMA Receive Buffer Descriptor Counter
Registers Address
BRXBDCNTA 0xF00A0014
BRXBDCNTB 0xF00C0014
Bit Number
[11:0] BDMA Rx buffer descriptor
Counter
7-18
Table 7-12. BTXBDCNT Register
R/W
R/W BDMA Tx buffer descriptor counter of Current
Pointer
R/W BDMA Tx buffer descriptor counter of Current
Pointer
Table 7-13. BDMA Transmit Buffer descriptor Counter
Bit Name
The maximum counter value is dependent on the BTxNBD of the
BDMATXCON register.
Buffer descriptor current address =
BDMATXDPTR + (BTXBDCNT<<3)
Table 7-14. BRXBDCNT Register
R/W
R/W BDMA Rx buffer descriptor counter
of current pointer
R/W BDMA Rx buffer descriptor counter
of current pointer
Table 7-15. BDMA Receive Buffer descriptor Counter
Bit Name
The maximum counter value is dependent on the BTxNBD of the
BDMATXCON register.
Buffer descriptor current address =
BDMARXDPTR + (BRXBDCNT<<3)
Description
Description
Description
Description
S3C2500B
Reset Value
0x00000000
0x00000000
Reset Value
0x00000000
0x00000000