US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 282
![no-image](/images/manufacturer_photos/0/5/560/renesas_electronics_america_sml.jpg)
US38024-BAG1
Manufacturer Part Number
US38024-BAG1
Description
DEV EVALUATION KIT H8/38024
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of US38024-BAG1
Contents
2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
For Use With/related Products
H8/38024
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 282 of 684
- Download datasheet (5Mb)
Section 9 Timers
Clock Stop Register 1 (CKSTPR1)
CKSTPR1 is an 8-bit read/write register that performs module standby mode control for peripheral
modules. Only the bit relating to timer C is described here. For details of the other bits, see the
sections on the relevant modules.
Bit 1—Timer C Module Standby Mode Control (TCCKSTP)
Bit 1 controls setting and clearing of module standby mode for timer C.
TCCKSTP
0
1
9.3.3
Interval Timer Operation
When bit TMC7 in timer mode register C (TMC) is cleared to 0, timer C functions as an 8-bit
interval timer.
Upon reset, TCC is initialized to H'00 and TMC to H'18, so TCC continues up-counting as an
interval up-counter without halting immediately after a reset. The timer C operating clock is
selected from seven internal clock signals output by prescalers S and W, or an external clock input
at pin TMIC. The selection is made by bits TMC2 to TMC0 in TMC.
TCC up/down-count control can be performed either by software or hardware. The selection is
made by bits TMC6 and TMC5 in TMC.
After the count value in TCC reaches H'FF (H'00), the next clock input causes timer C to overflow
(underflow), setting bit IRRTC in IRR2 to 1. If IENTC = 1 in interrupt enable register 2 (IENR2),
a CPU interrupt is requested.
At overflow (underflow), TCC returns to H'00 (H'FF) and starts counting up (down) again.
Rev. 8.00 Mar. 09, 2010 Page 260 of 658
REJ09B0042-0800
Bit:
Initial value:
Read/Write:
Timer Operation
Description
Timer C is set to module standby mode
Timer C module standby mode is cleared
⎯
⎯
7
1
⎯
⎯
6
1
S32CKSTP ADCKSTP TGCKSTP
R/W
5
1
R/W
4
1
R/W
3
1
TFCKSTP TCCKSTP TACKSTP
R/W
2
1
R/W
1
1
(initial value)
R/W
0
1
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