Kawasaki 80C152 - Manual (Page 99)

KS152JB Universal Communications Controller
Technical Specifications
Kawasaki LSI USA, Inc. Page 99 of 120 Ver. 0.9 KS152JB2
AL - Address Length, see GMOD.
AMSK0,1 (0D5H, 0E5H) - Address Match Mask 0,1 - Identifies which bits in ADR0,1 are “don’t
care” bits. Setting a bit to 1 in AMSK0,1 identifies the corresponding bit in ADDR0,1 as not to be
examined when comparing address.
BAUD - (94H) Contains the programmable value for the baud rate generator for the GSC. The
baud rate will equal (fosc) / ((BAUD+1) x 8).
BCRL0,1 (0E2H, 0F2H) - Byte Count Register Low 0,1 - Contains the lower byte of the byte
count. Used during the DMA transfer to identify to the DMA channels when the transfer is com-
plete.
BCRH0,1 (0E3H, 0F3H) - Byte Count Register High 0,1 - Contains the upper byte of the byte
count.
BKOFF (0C4H) - Backoff Timer - The Backoff timer is an eight bit count-down timer with a
clock period equal to one slot time. The Backoff time is used in CSMA/CD collision resolution
algorithm.
BOF - Beginning of Frame Flag - A term commonly used when dealing packetized data. Signifies
the beginning of a frame.
CRC - Cyclic Redundancy Check - An error checking routine that mathematically manipulates a
value depending on the incoming data. The purpose is to identify when a frame has been received
in error.
CRCE - CRC Error, See RSTAT.
CSMA/CD - Stands for Carrier Sense, Multiple Access, with Collision Detection.
CT- CRC Type, see GMOD.
DARL0/1 (0C2H, 0D2H) - Destination Address Register Low 0/1 - Contains the lower byte of the
destinations’ address when performing DMA transfers.
DARH0/1 (0C3H, 0D3H) - Destination Address Register Low 0/1 - Contains the upper byte of the
destinations’ address when performing DMA transfers.
DAS - Destination Address Space, see DCON.
DCJ - D.C.Jam, see MYSLOT.