RS5C313 RICOH Co.,Ltd., RS5C313 Datasheet - Page 11
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RS5C313
Manufacturer Part Number
RS5C313
Description
Ultra-compact Real-time Clock Ic
Manufacturer
RICOH Co.,Ltd.
Datasheet
1.RS5C313.pdf
(27 pages)
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2.2 Interrupt Cycle Register (at 7h)
2.3 Test Register (at Fh)
*
*
*
CT
CT
1) (CT
D3
D3
1) The TEST bit is write-only and set to 0 when read.
2) The TEST bit should be fixed at 1 for ordinary operation and will automatically be set to 1 when the CE pin is at the low level.
*
0
3
3
The CT
(when the CT
The interrupt cycle and output mode at the INTR pin are shown in detail in the section on the CTFG bit in “2.1 Control Register (at Eh)”.
3
to CT
3
to CT
CT
CT
D2
D2
0
*
0
)
2
2
3
0
bit is set to 0) and the level mode (when the CT
bits are used to select the interrupt cycle and output mode at the INTR pin. There are two interrupt modes selectable: the pulse mode
CT
CT
D1
D1
*
0
1
1
TEST
CT
CT
D0
D0
0
0
0
Bit For Testing
(For write operation)
(For read operation)
Bits for selecting the interrupt cycle and output mode at the INTR pin *
(For write operation)
(For read operation)
TEST
0
1
3
Testing mode
Ordinary operating mode
bit is set to 1).
*
2
*
1
Description
RS5C313
1
11