ELANSC400 Datasheet, PDF (5/132 Pages) Advanced Micro Devices – Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers

BLOCK DIAGRAM—ÉlanSC410 MICROCONTROLLER
Clock I/O
32-kHz Crystal
GPIOs or
Parallel Port
Serial Port
Infrared
Am486^®
CPU
ÉlanSC410 Microcontroller
Addr
Data
Memory
Management
Unit
Dual DMA
Controllers
8237
Addr
Address
Decoder
Power
Management
GPIOs
Unit
Clock
Generation
Real-Time
Clock
Boundary
Scan
AT Port
Logic
Timer
8254
Dual Interrupt
Controllers
8259
GPIOs
EPP
Parallel
Port
UART
16550
Infrared
Port
Data
Steering
Internal
Bus
Local Bus
Controller
System
Arbiter
Memory
Controller
GPIOs
Keyboard
Interface:
Matrix/XT/SCP
GPIOs
ISA Bus
Controller
System Address Bus
Data Bus
Local Bus Controller
GPIOs
DRAM Control
ROM Control
DRAM Control or
Keyboard Rows
GPIOs or
Keyboard Rows
Columns or
XT Keyboard
ISA Control or
Keyboard Rows
ISA Control
ISA Control or
GPIOs
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
5