参数资料
型号: MB91108PFV
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 12/96页
文件大小: 1342K
代理商: MB91108PFV
MB91107/108
2
Function entrance/exit instructions, multiple load/store instructions of register contents, instruction systems
supporting high level languages
Register interlock functions, efficient assembly language coding
Branch instructions with delay slots: Reduced overhead time in branch executions
Internal multiplier/supported at instruction level
Signed 32-bit multiplication: 5 cycles
Signed 16-bit multiplication: 3 cycles
Interrupt (push PC and PS): 6 cycles, 16 priority levels
Bus interface
Clock doubler: Internal 50 MHz, external bus 25 MHz operation
25-bit address bus (32 Mbytes memory space)
8/16-bit data bus
Basic external bus cycle: 2 clock cycles
Chip select outputs for setting down to a minimum memory block size of 64 Kbytes: 8
Interface supported for various memory technologies
DRAM interface (area 4 and 5)
Automatic wait cycle insertion: Flexible setting, from 0 to 7 for each area
Unused data/address pins can be configured us input/output ports
Little endian mode supported (Select 1 area from area 1 to 5)
DRAM interface
2 banks independent control (area 4 and 5)
Double CAS DRAM (normal DRAM I/F) / Single CAS DRAM / Hyper DRAM
Basic bus cycle: Normally 5 cycles, 2-cycle access possible in high-speed page mode
Programmable waveform: Automatic 1-cycle wait insertion to RAS and CAS cycles
DRAM refresh
CBR refresh (interval time configurable by 6-bit timer)
Self-refresh mode
Supports 8/9/10/12-bit column address width
2CAS/1WE, 2WE/1CAS selective
Cache memory
1-Kbyte instruction cache memory
2 way set associative
32 block/way, 4 entry(4 word)/block
Lock function: For specific program code to be resident in cache memory
DMAC (DMA controller)
8 channels
Transfer incident/external pins/internal resource interrupt requests
Transfer sequence: Step transfer/block transfer/burst transfer/continuous transfer
Transfer data length: 8 bits/16 bits/32 bits selective
NMI/interrupt request enables temporary stop operation
UART
3 independent channels
Full-duplex double buffer
Data length: 7 bits to 9 bits (non-parity), 6 bits to 8 bits (parity)
Asynchronous (start-stop system), CLK-synchronized communication selective
Multi-processor mode
Internal 16-bit timer (U-TIMER) operating as a proprietary baud rate generator: Generates any given baud rate
Use external clock can be used as a transfer clock
Error detection: Parity, frame, overrun
(Continued)
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