AT&T 3B2/300 Technical Reference Manual page 455

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - - -
Local RAM
The EPORTS card contains 128K bytes of Dual Ported Dynamic Random Access Memory
(DPDRAM) configured as 64K by 16 bits. Four Direct Memory Access Controllers (DMACs) are used to
provide individual transmit and receive DMA channels for each of the eight RS-232C ports.
Local ROM
The EPORTS card firmware is in 16K bytes of Read Only Memory (ROM) configured as 8K by 16
bits.
CM 195A Y Equipped Device Table Data
The following table shows the Equipped Device Table (EDT) data for an EPORTS card. A value of
0 means NO; a value of 1 means YES. The indirect device (indir_dev) is only applicable to systems
equipped with Small Computer System Interface (SCSI). The request queue size (rq_size) and the
completion queue size (cq_size) are EPORTS software defined values. As such, the rq_size and cq_size
values may differ between versions of EPORTS software.
EDT ITEM
DATA
IDENTIFICATION CODE (ID_code)
Ox 0102
DEVICE NAME (dev_name)
EPORTS
REQUEST QUEUE SIZE (rq_size) Ox 21
COMPLETION QUEUE SIZE (cq_size) Ox 46
BOOT DEVICE (booLdev)
0
WORD SIZE (worc:Lsize)
1
BOARD SIZE (brd_size)
0
SMART BOARD (smrLbrd) 1
CONSOLE CAPABILITY (cons_cap) 1
CONSOLE FILE (cons_file)
1
INDIRECT DEVICE (indir_dev)
0
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