EDOSK2674 Renesas Electronics America, EDOSK2674 Datasheet - Page 16

• Manufacturer Part Number: EDOSK2674
• Description: DEV EVALUATION KIT H8S/2674
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of EDOSK2674

• Contents: EDOSK (Evaluation Development Operating System Kit) Board
• For Use With/related Products: H8S/2674R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.
4.1. J
The EDOSK has a two-row 8 pin header for selecting operation modes.
As default, jumpers for BOOT and MF WEN are fited.
4.2. RTC B
Without a backup supply to the RTC, time and date information is lost when the board is powered down.
Two options are available on the EDOSK:
1.
2.
Each of these options may or may not be rechargeable.
If however neither option is used or the backup supply falls below 1.3V then the EDOSK board will cease to function when
powered up unless a supply from Vcc is provided. By default design this supply from Vcc is provided.
The Following diagram shows the circuit used for the RTC backup supply:
A cell battery may be fitted.
An auxiliary supply of 1.3V to 3.6V may be provided to J8 – a 2-pin through hole header (not fitted).
B
BOOT: Boot/Normal Mode.
MON EN: Monitor Enable.
MF WEN: Main FLASH Write Enable.
BF WEN: Boot FLASH Write Enable.
UMPER
OARD
ACKUP
L
O
INKS
Fitted to link pins 8-7 – Boot Mode: MCU initialises in 8-bit mode and boots from the 512KB Boot FLASH.
Not fitted – Normal Mode: Micon initialises in 16-bit mode and boots from the 4MB Main FLASH.
Fitted to link pins 6-5 – Enables the Hitachi monitor (when included in user code).
Not fitted – Program code runs with no monitor.
Fitted to link pins 4-3 – Allows the Main FLASH to be written to by the MCU.
Not fitted – Main FLASH is write protected.
Fitted to link pins 2-1 – Allows the Boot FLASH to be written to by the MCU.
Not fitted – Boot FLASH is write protected.
PTIONS
S
UPPLY
MF WEN
MON EN
BF WEN
BOOT
8
6
4
2
F
IGURE
7
5
3
1
4-1: J
UMPER
C
ONFIGURATION
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