ox16c954 ETC-unknow, ox16c954 Datasheet - Page 4

• Manufacturer Part Number: ox16c954
• Description: High Performance Quad Uart With 128-byte Fifos Intel / Motorola Bus Interface
• Manufacturer: ETC-unknow

14.5
14.6
14.7
15 ADDITIONAL FEATURES ................................................................................................................................................................37
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
15.12
15.13
15.14
15.15
16 OPERATING CONDITIONS..............................................................................................................................................................43
17 DC ELECTRICAL CHARACTERISTICS .........................................................................................................................................44
17.1
17.2
18 AC ELECTRICAL CHARACTERISTICS .........................................................................................................................................46
18.1
18.2
19 TIMING WAVEFORMS......................................................................................................................................................................48
20 PACKAGE INFORMATION...............................................................................................................................................................50
21 ORDERING INFORMATION.............................................................................................................................................................52
NOTES ......................................................................................................................................................................................................53
CONTACT DETAILS................................................................................................................................................................................54
Data Sheet Revision 1.0
OXFORD SEMICONDUCTOR LTD.
TTL Clock Mode ........................................................................................................................................................................36
External 1x Clock Mode...........................................................................................................................................................36
Crystal Oscillator Circuit .........................................................................................................................................................36
Additional Status Register ‘ASR’...........................................................................................................................................37
FIFO Fill levels ‘TFL & RFL’.....................................................................................................................................................37
Additional Control Register ‘ACR’.........................................................................................................................................37
Transmitter Trigger Level ‘TTL’..............................................................................................................................................39
Receiver Interrupt. Trigger Level ‘RTL’.................................................................................................................................39
Flow Control Levels ‘FCL’ & ‘FCH’ ........................................................................................................................................39
Device Identification Registers ..............................................................................................................................................39
Clock Select Register ‘CKS’....................................................................................................................................................40
Nine-bit Mode Register ‘NMR’.................................................................................................................................................40
5V Operation..............................................................................................................................................................................44
3.3V Operation...........................................................................................................................................................................45
5V Operation..............................................................................................................................................................................46
3.3V Operation...........................................................................................................................................................................47
Modem Disable Mask ‘MDM’ ..............................................................................................................................................41
Readable FCR ‘RFC’ ............................................................................................................................................................41
Good-data status register ‘GDS’ .......................................................................................................................................41
DMA Status Register ‘DMS’................................................................................................................................................42
Port Index Register ‘PIX’.....................................................................................................................................................42
Clock Alteration Register ‘CKA’ ........................................................................................................................................42
OX16C954 rev B
Page 4