Operational Specifications
3.2.4 Switch and LED Functions
Rev.1.0 Dec 15, 2006
3-20
REJ10J0917-0100
3
Table3.2.6 lists functions of switch SW4. SH7149 operating mode is determined by the setting of the MD0, MD1 and
FWE pins. Table3.2.7 lists the selection of SH7149 operating modes.
Table3.2.6 Functions of Switch SW4
No. Setting
Function
OFF
FWE=H (Releasing the writing/erasing protects of on-chip flash memory)
SW4-1
FWE
ON
FWE=L (Setting the writing erasing protects of on-chip flash memory)
OFF
MD1 pin state “H”
SW4-2
MD1
ON
MD1 pin state “L”
OFF
MD0 pin state “H”
SW4-3
MD0
ON
MD0 pin state “L”
CPU mode setting
(ref. Table3.2.7)
: Initial Setting
Table3.2.7 Selection of SH7149 operating modes
SH7149 Operating mode
SW4-1
(FWE)
SW4-2
(MD1)
SW4-3
(MD0)
Operating mode
Mode name
ON ON ON Mode0
MCU extension mode0
(On-chip ROM not active, CSO space: 8-bit bus width)
ON ON OFF Mode1
MCU extension mode1
(On-chip ROM not active, CSO space: 8-bit bus width))
ON OFF ON Mode2
MCU
extension mode2 (On-chip ROM active)
ON
OFF
OFF
Mode3
Single chip mode (On-chip ROM active)
OFF
ON
ON
Mode4
Boot mode (On-chip ROM active)
OFF
ON
OFF
Mode5
User Boot mode (On-chip ROM active)
OFF OFF ON Mode6
User
Programming mode (On-chip ROM active)
OFF OFF OFF Mode7
User
Programming mode (On-chip ROM active)
: Initial Setting
Table3.2.8 lists functions of LEDs mounted in M3A-HS49.
Table3.2.8 Functions of LEDs Mounted in M3A-HS49
No. Color
Functions/Remarks
LED1
Blue
Power-on LED (LED1 lights when power is supplied)
LED2
Green
Open to the user (LED2 lights when PE0 outputs “L”)
LED3
Green
Open to the user (LED3 lights when PE9 outputs “L”)
LED4
Green
Open to the user (LED4 lights when PE11 outputs “L”)
LED5
Green
Open to the user (LED5 lights when PE12 outputs “L”)
LED6
Green
Open to the user (LED6 lights when PE14 outputs “L”)
LED7
Green
Open to the user (LED7 lights when PE15 outputs “L”)
Red
Interrupt confirmation (LED8 lights red when pushing at NMI switch (SW5).
LED8
Yellowgreen Interrupt confirmation (LED8 lights yellowgreen when pushing IRQ0 switch (SW6).
Содержание M3A-HS49
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