LC72136M データシートの表示（PDF） - SANYO -> Panasonic
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LC72136M Datasheet PDF : 23 Pages
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LC72136, 72136M
DI Control Data Functions
No.
Control block/data
Description
Programmable divider data • Data that sets the programmable divider
P0 to P15
A binary value in which P15 is the MSB. The LSB changes depending on DVS and SNS.
(1)
DVS, SNS
Reference divider data
R0 to R3
(2)
XS
IF counter control data
CTE
GT0, GT1
DVS SNS LSB
Divisor setting (N)
Actual divisor
1
*
P0
272 to 65535
Twice the value of the setting
0
1
P0
272 to 65535
The value of the setting
0
0
P4
4 to 4095
Note: P0 to P3 are ignored when P4 is the LSB.
The value of the setting
• Selects the signal input pin (AMIN or FMIN) for the programmable divider, switches the
frequency range, and determines the BOF pin output state. (*: Don’t care.)
DVS SNS Input pin
Input frequency range
1
*
FMIN
10 to 160 MHz
0
1
AMIN
2 to 40 MHz
0
0
AMIN
0.5 to 10 MHz
Note: See the “Programmable Divider” item for details.
• Reference frequency (fref) selection data
BOF pin
Low
Open
Open
R3
R2
R1
R0
Reference frequency (kHz)
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
25
25
25
25
12.5
6.25
3.125
3.125
1
0
0
0
5
1
0
0
1
5
1
0
1
0
5
1
0
1
1
1
1
1
0
0
3
1
1
0
1
15
1
1
1
0
PLL INHIBIT + Xtal OSC STOP
1
1
1
1
PLL INHIBIT
Note: PLL INHIBIT
The programmable divider and IF counter blocks are stopped, the FMIN, AMIN,
and IFIN pins go to the pulled-down state, and the charge pump output pin goes to
the high-impedance state.
• Oscillator margin selection data
XS = 0: “Reduction mode” The oscillator margin is reduced and the crystal radiation
is reduced.
XS = 1: Normal mode.
Normal mode is selected following a power-on reset.
• IF counter measurement start specification
CTE = 1: Counter start
CTE = 0: Counter reset
• IF counter measurement time determination
GT1
GT0
Measurement time (ms)
(3)
0
0
4
0
1
8
1
0
32
1
1
64
Note: See the “IF Counter Structure” item for details.
(4)
I/O port specification data • Data that specifies input or output for the I/O dual-use pins
IOC1, IOC2
Data: 0 = input mode, 1 = output mode
Output port data
(5) BO1 to BO5, IO1, IO2
• BO1 to BO5, IO1, and IO2 output state data
Data: 0 = open, 1 = low
• “Data = 0: Open” is selected following a power-on reset.
Wait time (ms)
3 to 4
3 to 4
7 to 8
7 to 8
Related data
IFS
IOC1
IOC2
Continued on next page.
No. 5038-10/23
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