UM82C482 Description
The UM82C482, Integrated System Controller (SC), is part of UMC's high performance 80386/80486 PC/AT chip set. It contains AT bus control logic, data bus conversion logic, CPU reset logic, clock generation for CPU, keyboard and timer, DMA/refresh logic and peripheral interface logic. Incorporated with UM82C481, Integrated Memory Controller IMC), and UM82C206, Integraged Peripheral Controller (IPC), ISC provides...
UM82C482 Key Features
- PD- OPD7
- XA16 1
- j f21 --~} 122 --+4 123
- j 148 --} 149 --4 150 ---] 151 --4 152
- +4 155
- +j 156
- 159 --1 160
- PBEO#- ___J PBEI- -~ PBE2- -- PBESW
- PMIO -- SPKDATA --- TIMCLK