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3
The following table lists the SW1 functions. Set the SH7216 operating mode using the FWE, MD0, and MD1 pins.
The FWE pin is multiplexed to the ASEBRK
E10A-USB emulator.
No.
Setting
SW1-1
OFF
FWE
ON
SW1-2
OFF
MD1
ON
SW1-3
OFF
MD0
ON
SW1-4
OFF
Ethernet mode
ON
Notes:
1.
Default setting.
2.
Do not change SW1 settings while the board is ON. Be sure to turn the power OFF before changing the
settings.
The following table lists the SH7216 operating mode setting.
SW1-1
SW1-2
(FWE)
(MD1)
ON
ON
ON
ON
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
Notes:
1.
Programming mode for the flash memory.
2.
Do not change SW1 settings while the board is ON. Be sure to turn the power OFF before changing the
settings.
Rev. 0.02 Mar. 27, 2009
REJ11J0038-0002
_______________
___________________
/ASEBRKAK
Table 3.2.6 Switch (SW1) Functions
FWE is high (on-chip flash memory is write/erase enabled)
FWE is low (on-chip flash memory is write/erase protected)
(1)
MD1 pin is fixed high
MD1 pin is fixed low
MD0 pin is fixed high
(1)
MD0 pin is fixed low
AUD/RSPI/TXD0/RXD0 pins are enabled
Ethernet/IRQ0/ADTRIG pins are enabled
Table 3.2.7 SH7216 Operating Mode Settings
SW1-3
(MD0)
No.
ON
Mode 0
MCU extension mode 0 (on-chip ROM is disabled, CS0 space: 32-bit bus)
OFF
Mode 1
MCU extension mode 1 (on-chip ROM is disabled,CS0 space:16-bit bus)
ON
Mode 2
MCU extension mode 2 (on-chip ROM is enabled)
OFF
Mode 3
Single-chip mode (on-chip ROM enabled)
(1)
ON
Mode 4
Boot mode (on-chip ROM enabled)
(1)
OFF
Mode 5
User boot mode (on-chip ROM enabled)
(1)
ON
Mode 6
User program mode (on-chip ROM enabled) (default setting)
(1)
OFF
Mode 7
USB boot mode (on-chip ROM enabled)
signals. Turn OFF SW1-1 (FWE) before using the
Description
(1)
(1)
SH7216 Operating Mode
Name
Operating Specifications
3.2.5 Switches and LEDs
Operating mode setting
Signal line switch
3-28
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