HD68562
HD68562 is Dual Universal Serial Communications Controller manufactured by Hitachi Semiconductor.
FEATURES
- Channel data rate: 4M bps maximum
- Receiver/Transmitter: Two channels, dual full-duplex syn- synchronous/asynchronous
- MUlti-protocol BOP (Bit Oriented Protocol) operation: BCP (Byte Controlled Protocol) COP (Character Oriented Protocol) ASYNC (Asynchronous)
- High data transfer efficiency: Four-character receiver/transmitter FIFOs
- Parity and FCS (Frame Check Sequence): VRC, LRC-8, CRC-16, CRC-CCITT
- Programmable data encoding/decoding: NRZ, NRZI, FMO, FM1, Manchester
- DMA interface: patible with Hitachi HD68450/HD63450 DMAC and other DMA controllers
- Multi-function programmable l6-bit CIT: Baud rate generator, etc.
- Clock oscillator: On-chip oscillator for crystal
- Power supply: Single +5V
-ADVANCE INFORMATION-
(DC-48)
- PIN ARRANGEMENT l ACK'
Al 4 RTXDAKB/GPi Ie 5
IRQ 6
RESET RTSB/SYNOUTB
TRXCB 9 RTXCB , DCDB/SYNIB 11
RXDS 12 TXDB , TXDAKii/GPI2B ,
3 RTXCA TXDA
@HITACHI
H,tachi America Ltd.- 2210 O'Toole Avenue
- San Jose, CA 95131
- (408) 435-8300
___________________________________________________________ HD68562
- MAJOR FUNCTIONS OF DUSCC
Item Maximum operating frequency Maximum data transfer rate Data length Bus interface FIFO Number of channels Error check Channel mode Data tra nsfer mode Protocol operation
Baud rate generator Selection of baud rate
Encoding/Decoding Digital phase locked loop DMA interface
Interrupt capabilities
Model control
16- bit counter ti mer Oscillator Package Power supply Power dissipation
FUNCTION
4MHz
4 Mbits/s
5- S bits patible with HD68000 (S bits bus)
4 bytes for each receiver/transmitter
2 channels
Parity, framing, over run, under run,...