71M6531D Maxim, 71M6531D Datasheet - Page 53
71M6531D
Manufacturer Part Number
71M6531D
Description
The 71M6531D/F and 71M6532D/F are highly integrated SoC devices with an MPU core, RTC, flash, and LCD driver
Manufacturer
Maxim
Datasheet
1.71M6531D.pdf
(120 pages)
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The function of the multiplexer is controlled with the I/O RAM field TMUX[4:0] (0x20AA[4:0]), as shown in
Table
may be used to calibrate the crystal oscillator. The RTC 4-second output provides even higher precision.
FDS 6531/6532 005
1.5.17 Test Ports (TMUXOUT pin)
One of the digital or analog signals listed in
The TMUXOUT pin may be used for diagnosis purposes or in production test. The RTC 1-second output
v1.3
51.
0x16 – 0x17
TMUX[4:0]
8 - 0x0F
0X1D
0X1E
0x1C
0X1F
0x1A
0x1B
0x10
0x11
0x12
0x13
0x14
0x15
0x18
0x19
0
1
2
3
4
5
6
7
© 2005-2010 TERIDIAN Semiconductor Corporation
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Mode
–
–
–
–
Table 51: TMUX[4:0] Selections
GNDD
Reserved
GNDD
Reserved
PLL_2P5
Output of the 2.5 V low-power regulator
Internal VBIAS voltage (nominally 1.6V)
Not used
Reserved
RTC 1-second output
RTC 4-second output
Not used
V1_OK comparator output
Real-time output (RTM) from the CE
WDTR_EN (Comparator 1 Output AND V1LT3)
Not used
RXD (from Optical interface, w/ optional inversion)
MUX_SYNC
Not used
CKMPU (MPU clock)
Pulse output
RTCLK (output of the oscillator circuit, nominally
32,786Hz)
CE_BUSY (busy interrupt generated by CE, 396µs)
XFER_BUSY (transfer busy interrupt generated by the
CE, nominally every 999.7ms)
Table 51
can be selected to be output on the TMUXOUT pin.
Function
Data Sheet 71M6531D/F-71M6532D/F
53
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