参数资料
型号: MM908E622ACDWB/R2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54
封装: 17.90 X 7.50 MM, 0.65 MM PITCH, PLASTIC, SOIC-54
文件页数: 48/66页
文件大小: 1277K
代理商: MM908E622ACDWB/R2
Analog Integrated Circuit Device Data
52
Freescale Semiconductor
908E622
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 16. IRef Trim Bits
System Trim Register 2 (SYSTRIM2)
CRHBHC1:0 - Current Recopy HB1:2 Trim Bits
These write only bits are for trimming the current recopy
of the half-bridge HB1 and HB2 (CSA=0). The provided
trim values have to be copied into these bits after every
reset. Reset clears the CRHBHC1:0 bits.
Table 17. Current Recopy Trim for HB1:2 (CSA=0)
CRHB5:3 - Current Recopy HB3:4 Trim Bits
These write only bits are for trimming the current recopy
of the half-bridge HB3 and HB4 (CSA=1). The provided
trim values have to be copied into these bits after every
reset. Reset clears the CRHB5:3 bits.
Table 18. Current Recopy Trim for HB3:4 (CSA=1)
CRHB2:0 - Current Recopy HB1:2 Trim Bits
These write only bits are for trimming of the current
recopy of the half-bridge HB1 and HB2 (CSA=1). The
provided trim values have to be copied into these bits
after every reset. Reset clears the CRHB2:0 bits.
Table 19. Current Recopy Trim for HB1:2 (CSA=1)
itrim3
itrim2
itrim0
Adjustment
00
0
00
01
2%
00
10
4%
00
11
8%
01
00
12%
01
-2%
01
10
-4%
01
11
-8%
10
00
-12%
Register Name and Address: IFBHBTRIM - $10
Bit7
6
5
4
3
2
1
Bit0
Read
0
Write
CRH
BHC
1
CRH
BHC
0
CRH
B5
CRH
B4
CRH
B3
CRH
B2
CRH
B1
CRH
B0
Reset
0
CRHBHC1
CRHBHC0
Adjustment
00
0
1
-10%
10
5%
1
10%
CRHB5
CRHB4
CRHB3
Adjustment
00
0
00
1
-5%
0
1
0
-10%
0
1
-15%
1
0
reserved
10
1
5%
11
0
10%
11
1
15%
CRHB2
CRHB1
CRHB0
Adjustment
00
0
00
1
-5%
0
1
0
-10%
0
1
-15%
1
0
reserved
10
1
5%
11
0
10%
11
1
15%
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