71M6543G Maxim, 71M6543G Datasheet - Page 111

• Manufacturer Part Number: 71M6543G
• Description: The 71M6543F/71M6543H are Teridian's 4th-generation polyphase metering system-on-chips (SoCs) with a 5MHz, 8051-compatible MPU core, low-power real-time clock (RTC) with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

v1.2
Name
LCD_SEG46[5:0]
LCD_SEG50[5:0]
LCD_SEGDIO51[5:0]
LCD_SEGDIO55[5:0]
LCD_VMODE[1:0]
LCD_Y
LKPADDR[6:0]
LKPAUTOI
LKPDAT[7:0]
LKP_RD
LKP_WR
MPU_DIV[2:0]
MUX0_SEL[3:0]
MUX1_SEL[3:0]
MUX2_SEL[3:0]
MUX3_SEL[3:0]
MUX4_SEL[3:0]
MUX5_SEL[3:0]
MUX6_SEL[3:0]
MUX7_SEL[3:0]
to
to
2443[5:0] to
to 2442[5:0]
243E[5:0]
Location Rst Wk Dir
2447[5:0]
2401[7:6] 00 00 R/W
2887[6:0]
2888[7:0]
2200[2:0]
2105[3:0]
2105[7:4]
2104[3:0]
2104[7:4]
2103[3:0]
2103[7:4]
2102[3:0]
2102[7:4]
2400[2]
2887[7]
2889[1]
2889[0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–
–
–
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2008–2011 Teridian Semiconductor Corporation
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
SEG data for SEG46 through SEG50. These pins cannot be configured as DIO.
SEG and DIO data for SEGDIO51 through SEGDIO55. If configured as DIO, bit 1 is
direction (1 is output, 0 is input), bit 0 is data, and the other bits are ignored.
Specifies how VLCD is generated. See
LCD Blink Frequency (ignored if blink is disabled).
1 = 1 Hz, 0 = 0.5 Hz
The address for reading and writing the RTC lookup RAM.
Auto-increment flag. When set, LKPADDR[6:0] auto increments every time LKP_RD or
LKP_WR is pulsed. The incremented address can be read at LKPADDR.
The data for reading and writing the RTC lookup RAM.
Strobe bits for the RTC lookup RAM read and write. When set, the LKPADDR[6:0] and
LKPDAT registers is used in a read or write operation. When a strobe is set, it stays set
until the operation completes, at which time the strobe is cleared and LKPADDR[6:0] is
incremented if LKPAUTOI is set.
MPU clock rate is:
The maximum value for MPU_DIV[2:0] is 4. Based on the default values of the PLL_FAST
bit and MPU_DIV[2:0], the power-up MPU rate is 6.29 MHz / 4 = 1.5725 MHz. The
minimum MPU clock rate is 38.4 kHz when PLL_FAST = 1.
Selects which ADC input is to be converted during time slot 0.
Selects which ADC input is to be converted during time slot 1.
Selects which ADC input is to be converted during time slot 2.
Selects which ADC input is to be converted during time slot 3.
Selects which ADC input is to be converted during time slot 4.
Selects which ADC input is to be converted during time slot 5.
Selects which ADC input is to be converted during time slot 6.
Selects which ADC input is to be converted during time slot 7.
LCD_VMODE
11
10
01
00
Description
External VLCD
LCD boost and LCD DAC enabled
LCD DAC enabled
No boost and no DAC. VLCD=V3P3L.
MPU Rate = MCK Rate * 2
2.5.10.3
71M6543F/H and 71M6543G/GH Data Sheet
for the definition of V3P3L.
-(2+ MPU_DIV [2:0])
.
111