71m6534h-igt Maxim Integrated Products, Inc., 71m6534h-igt Datasheet - Page 85

• Manufacturer Part Number: 71m6534h-igt
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

FDS_6533_6534_004
v1.1
LCD_SEG63[3:0]
…
LCD_SEG65[3:0]
LCD_SEG66[3:0]* 2048[7:4]
LCD_SEG67[3:0]
…
LCD_SEG71[3:0]
LCD_SEG72[3:0]*
…
LCD_SEG75[3:0]*
LCD_Y
M26MHZ
M40MHZ
MPU_DIV[2:0]
MUX_ALT
2045[7:4]
…
2047[7:4]
2049[7:4]
…
204D[7:4]
204E[7:4]
…
2051[7:4]
2021[6]
2005[4]
2005[0]
2004[2:0]
2005[2]
…
…
…
0
0
0
0
0
0
0
0
0
0
0
0
…
…
…
L
L
L
L
L
L
L
L
0
0
0
0
© 2007-2009 TERIDIAN Semiconductor Corporation
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LCD Segment Data continued.
LCD Blink Frequency (ignored if blink is disabled or if the segment is off).
M26MHZ and M40MHZ set the master clock (MCK) frequency. These bits are reset on
chip reset and may only be set. Attempts to write zeroes to M40MHZ and M26MHZ are
ignored.
The MPU clock divider (from MCK). These bits may be programmed by MPU without
risk of losing control.
The MPU asserts this bit when it wishes the MUX to perform ADC conversions on an
alternate set of inputs.
If CHOP_E is 00, MUX_ALT is automatically asserted once per sum cycle, when
XFER_BUSY falls.
MPU_DIV[2:0]
M40MHZ
0 = 1 Hz (500 ms ON, 500 ms OFF)
1 = 0.5 Hz (1 s ON, 1 s OFF)
0
0
1
1
000
001
010
011
100
101
110
111
M26MHZ
0
1
0
1
Resulting Clock Frequency
MCK/4
MCK/8
MCK/16
MCK/32
MCK/64
MCK/128
MCK/265
MCK/265
MCK Frequency
26.7 MHz
20 MHz
40 MHz
40 MHz
71M6533/71M6534 Data Sheet
85