ml670100 Oki Semiconductor, ml670100 Datasheet - Page 157

• Manufacturer Part Number: ml670100
• Description: Ml670100 Is A High-performance 32-bit Microcontroller
• Manufacturer: Oki Semiconductor

11
11. 1
11.2
11.3
11.4
11.5
11.6
External Memory Controller
Overview
11.1.1
11.1.2
11.1.3
11.1.4
Control Registers
11.2.1
11.2.2
11.2.3
11.2.4
11.2.5
11.2.6
11.2.7
11.2.8
11.2.9
11.2.10 Refresh Cycle Control Register (RCCON)
11.2.11 Refresh Timing Control Register (RTCON)
11.2.12 Refresh Control Register (RFCON)
11.2.13 Cycle Trace Control Register (CTCON)
Address Space Access
11.3.1
11.3.2
11.3.3
11.3.4
11.3.5
Bus Arbitration
11.4.1
11.4.2
11.4.3
Standby Operation
Connecting External Memory
11.6.1
11.6.2
11.6.3
Block Diagram
Pins
Control Registers
Address Spaces
Bus Width Control Register (BWCON)
Wait Input Control Register (WICON)
Off Time Control Register (OTCON)
Programmable Wait Control Register (PWCON)
Bus Access Control Register (BACON)
DRAM Bank 2 and 3 Control Registers (DRnCON, n=2,3)
DRAM Bank 2 and 3 Access Timing Control Registers
(ATnCON, n=2,3)
(DWnCON, n=2,3)
Refresh Timer Counter (RFTCN)
Data Bus Width
Accessing External Memory in SRAM Banks (0 and 1)
Accessing External Memory in DRAM Banks (2 and 3)
External Access Functions Common to All Banks
Accessing Bank 0 Internal Memory Areas
Bus Access and Priority
Requesting and Obtaining Bus Access
Lock Operation
Connecting ROM
Connecting SRAM
Connecting DRAM
DRAM Bank 2 and 3 Programmable Wait Control Registers
11-2
11-3
11-5
11-6
11-7
11-9
11-9
11-10
11-11
11-12
11-13
11-14
11-15
11-16
11-17
11-17
11-18
11-19
11-21
11-22
11-23
11-24
11-27
11-36
11-38
11-39
11-39
11-39
11-40
11-41
11-42
11-42
11-44
11-47
11-1