DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 314

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

Section 9 16-Bit Timer Pulse Unit (TPU)
Bits 4 and 3—Clock Edge 1 and 0 (CKEG1, CKEG0): These bits select the input clock edge.
When the input clock is counted using both edges, the input clock period is halved (e.g. /4 both
edges = /2 rising edge). If phase counting mode is used on channels 1, 2, 4, and 5, this setting is
ignored and the phase counting mode setting has priority.
Bit 4
CKEG1
0
1
Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is
Bits 2, 1, and 0—Time Prescaler 2, 1, and 0 (TPSC2 to TPSC0): These bits select the TCNT
counter clock. The clock source can be selected independently for each channel. Table 9.4 shows
the clock sources that can be set for each channel.
Table 9.4
Legend:
Blank : No setting
Rev. 4.00 Feb 15, 2006 page 288 of 900
REJ09B0291-0400
Channel
0
1
2
3
4
5
: Setting
ignored if the input clock is /1, or when overflow/underflow of another channel is selected.
/1
Bit 3
CKEG0
0
1
—
TPU Clock Sources
/4
/16
Description
Count at rising edge
Count at falling edge
Count at both edges
Internal Clock
/64
/256
/1024
/4096 TCLKA TCLKB TCLKC TCLKD
External Clock
(Initial value)
on Another
Underflow
Overflow/
Channel