RS8973 Mindspeed Technologies, RS8973 Datasheet - Page 77

• Manufacturer Part Number: RS8973
• Description: Single-chip Sdsl/hdsl Transceiver
• Manufacturer: Mindspeed Technologies

RS8973
Single-Chip SDSL/HDSL Transceiver
A 6-bit read/write register representing an unsigned binary address defined over a range of 0 to 63 decimal.
When written, this register causes the selected 8-bit scratch pad memory location to be subsequently loaded into
the lowest-order bits of the Access Data Register [access_data_byte[3:0]; 0x7C–0x7F] within 2 symbol periods.
Does not affect the value of the memory. No other data access should occur between the time the Read Tap
Select Register is written and the time the Access Data Register is read, or the data may be corrupted.
A 6-bit read/write register representing an unsigned binary address defined over a range of 0 to 63 decimal.
When written, this register causes the lowest-order 8 bits of the Access Data Register [access_data_byte[3:0];
0x7C–0x7F] to be subsequently written to the selected scratch pad memory location within 2 symbol periods.
Does not affect the value of the access data register.
N8973DSD
0x76—Scratch Pad Read Tap Select (sp_tap_select_read)
0x77—Scratch Pad Write Tap Select (sp_tap_select_write)
—
—
7
7
—
—
6
6
D[5]
D[5]
5
5
Preliminary Information
D[4]
D[4]
4
4
Conexant
D[3]
D[3]
3
3
D[2]
D[2]
2
2
D[1]
D[1]
3.3 Register Description
1
1
3.0 Registers
D[0]
D[0]
0
0
3-31