DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 810
![MCU 5V 128K I-TEMP,PB-FREE, 100-](/photos/28/61/286108/100-tqfp_sml.jpg)
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 810 of 1179
- Download datasheet (7Mb)
Section 25 Power-Down State
25.11
25.11.1 Overview of Direct Transition
There are three operating modes in which the CPU executes programs: high-speed mode, medium-
speed mode, and subactive mode. A transition between high-speed mode and subactive mode
without halting the program is called a direct transition. A direct transition can be carried out by
setting the DTON bit in LPWRCR to 1 and executing a SLEEP instruction. After the transition,
direct transition interrupt exception handling is started.
Direct Transition from High-Speed Mode to Subactive Mode: If a SLEEP instruction is
executed in high-speed mode while the SSBY bit in SBYCR, the LSON bit and DTON bit in
LPWRCR, and the PSS bit in TSCR (WDT1) are all set to 1, a transition is made to subactive
mode.
Direct Transition from Subactive Mode to High-Speed Mode: If a SLEEP instruction is
executed in subactive mode while the SSBY bit in SBYCR is set to 1, the LSON bit is cleared to 0
and the DTON bit is set to 1 in LPWRCR, and the PSS bit in TSCR (WDT1) is set to 1, after the
elapse of the time set in bits STS2 to STS0 in SBYCR, a transition is made to directly to high-
speed mode.
25.12
1. When making a transition to subactive mode or watch mode, set the DTC to enter module stop
2. The on-chip peripheral modules (DTC and TPU) which halt operation in subactive mode
Rev. 4.00 Sep 27, 2006 page 764 of 1130
REJ09B0327-0400
mode (write 1 to the relevant bits in MSTPCR), and then read the relevant bits to confirm that
they are set to 1 before mode transition. Do not clear module stop mode (write 0 to the relevant
bits in MSTPCR) until a transition from subactive mode to high-speed mode or medium-speed
mode has been performed.
If a DTC activation source occurs in sub-active mode, the DTC will be activated only after
module stop mode has been cleared and high-speed mode or medium-speed mode has been
entered.
cannot clear an interrupt in subactive mode. Therefore, if a transition is made to sub-active
mode while an interrupt is requested, the CPU interrupt source cannot be cleared. Disable the
interrupts of each on-chip peripheral module before executing a SLEEP instruction to enter
subactive mode or watch mode.
Direct Transition
Usage Notes
Related parts for DF2148RTE20IV
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![R0K330290S001BE](/photos/28/41/284146/r0k330290s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K5212D8S001BE](/photos/24/13/241324/4607177_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K33062PS001BE](/photos/24/13/241320/4607173_tmb.jpg)
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521237S001BE](/photos/28/41/284170/r0k521237s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521256S001BE](/photos/24/13/241323/4607176_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
![YLCDRSK2456S](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521380S000BE](/photos/28/41/284144/r0k521380s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521350S000BE](/photos/28/41/284145/r0k521350s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K52L3A0S000BE](/photos/28/41/284149/r0k52l3a0s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K556100S000BE](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K564189S000BE](/photos/28/41/284173/r0k564189s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521276S000BE](/photos/9/26/92647/r0k521276s000be_tmb.jpg)
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K571242S001BE](/photos/9/23/92397/r0k571242s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K561622S000BE](/photos/9/23/92398/r0k561622s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K572030S000BE](/photos/9/24/92406/r0k572030s000be_tmb.jpg)
Part Number:
Description:
KIT DEV FOR SH7203
Manufacturer:
Renesas Electronics America
Datasheet: