Table of Contents
Am186™CC/CH/CU Microcontrollers User’s Manual
vii
WHB and WR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
WLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
WR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Hardware-Related Considerations . . . . . . . . . . . . . . . . . . . . . . . 4-5
Comparison to Other Devices . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Selecting Memory and I/O Space . . . . . . . . . . . . . . . . . . . . . . . 5-5
5.5.2.1
UCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
LCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
MCS3–MCS0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
PCS7–PCS0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Selecting DRAM Using the Chip Selects . . . . . . . . . . . . . . . . . . 5-7
Overlapping Chip Selects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Configuring Address and Data Buses . . . . . . . . . . . . . . . . . . . . 5-9
5.5.5.1
UCS and LCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Non-UCS and Non-LCS . . . . . . . . . . . . . . . . . . . . . . . 5-9
PCS I/O Space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Programming Ready Signals and Wait States . . . . . . . . . . . . . 5-10
Chip Select Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Hardware-Related Considerations . . . . . . . . . . . . . . . . . . . . . . 5-10
Software-Related Considerations . . . . . . . . . . . . . . . . . . . . . . 5-10
5.5.10 Comparison to Other Devices. . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
DRAM Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
DRAM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Option to Overlap DRAM with PCS . . . . . . . . . . . . . . . . . . . . . . 6-5
DRAM Refresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.5.5.1
DRAM Refresh Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
DRAM Refresh Intervals . . . . . . . . . . . . . . . . . . . . . . 6-6
Hardware-Related Considerations . . . . . . . . . . . . . . . . . . . . . . . 6-6
Software-Related Considerations . . . . . . . . . . . . . . . . . . . . . . . 6-6
Comparison to Other Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Summary of Contents for Am186 CC
Page 1: ...Am186 CC CH CU Microcontrollers User s Manual Order 21914B...
Page 4: ...iv Am186 CC CH CU Microcontrollers User s Manual...
Page 18: ...Table of Contents xviii Am186 CC CH CU Microcontrollers User s Manual...
Page 24: ...Introduction xxiv Am186 CC CH CU Microcontrollers User s Manual...
Page 40: ...Architectural Overview 1 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 86: ...System Overview 3 36 Am186 CC CH CU Microcontrollers User s Manual...
Page 92: ...Emulator Support 4 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 112: ...DRAM Controller 6 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 134: ...Interrupts 7 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 186: ...Programmable I O Signals 9 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 200: ...Watchdog Timer 11 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 232: ...Asynchronous Serial Ports UARTs 13 24 Am186 CC CH CU Microcontrollers User s Manual...
Page 242: ...Synchronous Serial Port SSI 14 10 Am186 CC CH CU Microcontrollers User s Manual...
Page 264: ...High Level Data Link Control HDLC 15 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 332: ...Universal Serial Bus USB 18 34 Am186 CC CH CU Microcontrollers User s Manual...
Page 348: ...Register Summary A 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 376: ...Index Index 18 Am186 CC CH CU Microcontrollers User s Manual...