参数资料
型号: 5962-9855202QZX
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 16 MHz, RISC MICROCONTROLLER, CQFP132
封装: QFP-132
文件页数: 10/64页
文件大小: 1464K
代理商: 5962-9855202QZX
18
3.1.2 LRI Instruction Bus Cycle
During an LRI instruction, the UT69R000 moves the
instruction data from the instruction memory to the
UT69R000.Figure 19 shows the timing diagram of the signal
relationships for the UT69R000 during an LRI Instruction Bus
Cycle.
Just as with the STRI instruction, before the UT69R000
executes the LRI instruction the system programmer must load
the UT69R000’s accumulator with the address from which the
data will be read. After the ACC is loaded with the address
information, LRI instruction execution can take place.
OSCIN
CK1
CK2
CK3
CK4
Figure 16. Machine Cycle 2 (3 Clock Cycle Instructions)
STATE1
EXECUTE
FETCH
RA(19:0)
RD(15:0)
Note:
1. Examples of three clock cycle instructions include (operand port accesses):
LR Rd, Rs
STR Rd, Rs
STATUS
DS
A(15:0)
D(15:0)
Address Valid
Data Read
Control Valid
Fetch Address Valid
Fetch Instruction
Fetch Address Valid
Fetch Instruction
(M/IO, R/WR)
相关PDF资料
PDF描述
5962F9855201QZA 32-BIT, 12 MHz, RISC MICROCONTROLLER, CQFP132
5962F9855202QYC 32-BIT, 16 MHz, RISC MICROCONTROLLER, CQFP132
5962G9855201VZC 32-BIT, 12 MHz, RISC MICROCONTROLLER, CQFP132
5962G9855202QYC 32-BIT, 16 MHz, RISC MICROCONTROLLER, CQFP132
5962G9855202QZX 32-BIT, 16 MHz, RISC MICROCONTROLLER, CQFP132
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