MT90502 Datasheet, PDF (145/191 Pages) Zarlink Semiconductor Inc – Multi-Channel AAL2 SAR

Preliminary Datasheet
MT90502
Address: 64Ch
Label: portb_overflow0
Reset Value: 1108h
Label
Bit Position Type
Description
ib_rx_cell_max
ib_oa_cell_max
ib_ob_cell_max
5:0
9:6
13:10
RW If the cell fill of the RX SAR output FIFO becomes greater than this
value, cells from the port B input FIFO will be blocked. 3Fh = no
backpressure
RW If the cell fill of the port A output FIFO becomes greater than this
value, cells from the port B input FIFO will be blocked. Fh = no
backpressure
RW If the cell fill of the port B output FIFO becomes greater than this
value, cells from the port B input FIFO will be blocked. Fh = no
backpressure
reserved
15:14 RW Reserved. Must always be “00”
Table 128 - Port B Overflow Register 0
Address: 64Eh
Label: portb_overflow1
Reset Value: 004h
Label
Bit Position Type
Description
ib_oc_cell_max
reserved
3:0
RW If the cell fill of the port C output FIFO becomes greater than this
value, cells from the port B input FIFO will be blocked. Fh = no
backpressure
15:4
RW Reserved. Must always be “0000_0000_0000”
Table 129 - Port B Overflow Register 1
Address: 650h
Label: portb_cell_arrival_high
Reset Value: 0000h
Label
Bit Position Type
Description
ib_arr[31:16]
15:0
CNT Counter of the number of cells received from port B
Table 130 - Port B Cell Arrival Counter (High Word)
Address: 652h
Label: portb_cell_arrival_low
Reset Value: 0000h
Label
Bit Position Type
Description
ib_arr[15:0]
15:0
CNT Counter of the number of cells received from port B
Table 131 - Port B Cell Arrival Counter (Low Word)
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