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HD6433635SW Datasheet(PDF) 215 Page - Renesas Technology Corp

Part # HD6433635SW
Description  8-Bit Microcomputer
PDF  418 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433635SW Datasheet(HTML) 215 Page - Renesas Technology Corp

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201
Timer Counter Y (TCY)
Timer Counter YH (TCYH)
Timer Counter YL (TCYL)
TCY
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
TCYH
TCYL
Timer counter Y (TCY) is a 16-bit readable up-counter that is incremented by an input
internal clock or external events. The input clock is selected with bits TMY2 to TMY0 in
TMY.
When TCY overflows (from H'FFFF to H'0000, or from H'FFFF to the TLY set value),
IRRTY in IRR2 is set to 1.
The TCY value can be read by the CPU at any time, but as it is a 16-bit register, data transfer
between TCY and the CPU is carried out via a temporary register (TEMP). For details, see
9.5.3, CPU Interface.
TCY is allocated to the same address as TLY.
Upon reset, TCY is initialized to H'0000.



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