HD6417032F20V Renesas Electronics America, HD6417032F20V Datasheet - Page 270
HD6417032F20V
Manufacturer Part Number
HD6417032F20V
Description
SH1 ROMLESS LEAD FREE
Manufacturer
Renesas Electronics America
Series
SuperH® SH7030r
Datasheet
1.HD6417034AFI20.pdf
(689 pages)
Specifications of HD6417032F20V
Core Processor
SH-1
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417032F20V
Manufacturer:
TI
Quantity:
201
- Current page: 270 of 689
- Download datasheet (5Mb)
Section 10 16-Bit Integrated Timer Pulse Unit (ITU)
10.2.6
The ITU has five 16-bit timer counters (TCNT), one for each channel.
Each TCNT is a 16-bit read/write counter that counts by input from a clock source. The clock
source is selected by timer prescaler bits 2–0 (TPSC2–TPSC0) in the timer control register (TCR).
TCNT0 and TCNT 1 are strictly up-counters. Up/down-counting occurs for TCNT2 when phase
counting mode is selected, or for TCNT3 and TCNT 4 when complementary PWM mode is
selected. In other modes, they are up-counters.
TCNT can be cleared to H'0000 by compare match with the corresponding general register A or B
(GRA, GRB) or input capture to GRA or GRB (counter clear function).
When TCNT overflows (changes from H'FFFF to H'0000), the overflow flag (OVF) in the timer
status register (TSR) is set to 1. The OVF of the corresponding channel TSR is also set to 1 when
TCNT underflows (changes from H'0000 to H'FFFF).
TCNT is connected to the CPU by a 16-bit bus, so it can be written or read by either word access
or byte access. TCNT is initialized to H'0000 by a reset and in standby mode.
Table 10.4 Timer Counters (TCNT)
Channel
0
1
2
3
4
Rev. 7.00 Jan 31, 2006 page 242 of 658
REJ09B0272-0700
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Timer Counters (TCNT)
Abbreviation
TCNT0
TCNT1
TCNT2
TCNT3
TCNT4
R/W
R/W
15
0
7
0
Function
Increment counter
Phase counting mode: Increment/decrement
All others: Increment
Complementary PWM mode: Increment/decrement
All others: Increment
R/W
R/W
14
0
6
0
R/W
R/W
13
0
5
0
R/W
R/W
12
0
4
0
R/W
R/W
11
0
3
0
R/W
R/W
10
0
2
0
R/W
R/W
9
0
1
0
R/W
R/W
8
0
0
0
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