CYRF69103
Document #: 001-07611 Rev *B
Page 39 of 73
Table 59.Free-Running Timer High-Order Byte (FRTMRH) [0x21] [R/W]
Bit #
7
6
5
4
3
2
1
0
Field
Free-running Timer [15:8]
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
Bits 7:0
Free-running Timer [15:8]
When reading the free-running timer, the low-order byte should be read first and the high-order second. When writing, the low-order byte should
be written first then the high-order byte.
Table 60.Programmable Interval Timer Low (PITMRL) [0x26] [R]
Bit #
7
6
5
4
3
2
1
0
Field
Prog Interval Timer [7:0]
Read/Write
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
Bits 7:0
Prog Interval Timer [7:0]
This register holds the low order-byte of the 12-bit programmable interval timer. Reading this register causes the high-order byte to be moved
into a holding register allowing an automatic read of all 12 bits simultaneously
Table 61.Programmable Interval Timer High (PITMRH) [0x27] [R]
Bit #
7
6
5
4
3
2
1
0
Field
Reserved
Prog Interval Timer [11:8]
Read/Write
--
--
--
--
R
R
R
R
Default
0
0
0
0
0
0
0
0
Bits 7:4
Reserved
Bits 3:0
Prog Internal Timer [11:8]
This register holds the high-order nibble of the 12-bit programmable interval timer. Reading this register returns the high-order nibble of the
12-bit timer at the instant that the low-order byte was last read
Table 62.Programmable Interval Reload Low (PIRL) [0x28] [R/W]
Bit #
7
6
5
4
3
2
1
0
Field
Prog Interval [7:0]
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
Bits 7:0
Prog Interval [7:0]
This register holds the lower 8 bits of the timer. While writing into the 12-bit reload register, write lower byte first then the higher nibble.
Table 63.Programmable Interval Reload High (PIRH) [0x29] [R/W]
Bit #
7
6
5
4
3
2
1
0
Field
Reserved
Prog Interval[11:8]
Read/Write
--
--
--
--
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
Bits 7:4]
Reserved
Bits 3:0
Prog Interval [11:8]
This register holds the higher 4 bits of the timer. While writing into the 12-bit reload register, write lower byte first then the higher nibble
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