参数资料
型号: M34552G8FP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP48
封装: 7 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-48
文件页数: 5/143页
文件大小: 0K
代理商: M34552G8FP
8: REGISTERS
1-90
EPSON
S1D13505F00A HARDWARE FUNCTIONAL
SPECIFICATION (X23A-A-001-12)
Clock Conguration Register
bit 7
Reserved
This bit must be set to 0.
bit 2
MCLK Divide Select
When this bit = 1 the MCLK frequency is half of its source frequency.
When this bit = 0 the MCLK frequency is equal to its source frequency.
The MCLK frequency should always be set to the maximum frequency allowed by the
DRAM; this provides maximum performance and minimum overall system power con-
sumption.
bits 1–0
PCLK Divide Select Bits [1:0]
These bits select the MCLK: PCLK frequency ratio.
See Section on “Maximum MCLK: PCLK Ratios” for selection of clock ratios.
Clock Configuration Register
REG[19h]
RW
Reserved
n/a
MCLK Divide
Select
PCLK Divide
Select Bit 1
PCLK Divide
Select Bit 0
Table 8-9 PCLK Divide Selection
PCLK Divide Select Bits [1:0]
MCLK : PCLK Frequency Ratio
00
1 : 1
01
2 : 1
10
3 : 1
11
4 : 1
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