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65
MR816CSX/MR816X
BOOT SEQUENCE
Operation fl ow of normal start-up (Turning on the power without holding any switch)
Indication on the product
Function
Behavior of main signal lines
All the LEDs go out
Voltage of 3.3 V is applied to the IC137 system reset (voltage
detector). Outputs about 10 us after detection.
IC137: +3.3D
Reset of the Flash ROM (IC133) is canceled.
IC133: /RESET
Reset of the CPU (IC131) is canceled.
IC131: ICN
Starts fetching the program from address number 0 of the
fl
ash
ROM (IC133). Boot Program starts.
IC131: CS0N(/CS0), MA*(MMA[*]), MD*(MMD[*]), RDN, WRN
Starts accessing to the external SRAM (IC134).
IC131: CS2N(/CS2), MA*(MMA[*]), MD*(MMD[*]), RDN, WRN,
UBN,
LBN
Sets register of the SSP1SUB (IC132).
IC131: CS3N(/CS3), MA*(MMA[*]), MD*(MMD[*]), RDN, WRN,
UBN,
LBN
Initializes the external SDRAM (IC135) of the SSP1SUB
(IC132).
IC132: CS2N(/CS), CS3N(/RAS), CS4N(/CAS), MA*(SMA[*]),
MD*(SMD[*]), RCLK, RDN, WRN, LBN
Resets the FPGA (IC123) and DICEII FLASH ROM (IC113).
IC131: ED07(/RESET)
Resets the MCI (IC111) and DICEII (IC103).
IC131: ED06(/RESETD)
Cancels reset of the FPGA (IC123) and DICEII FLASH ROM
(IC113) in 10 (ms).
IC131: ED07(/RESET)
Cancels reset of the MCI (IC111) and DICEII (IC103) 10 (ms)
after the above procedure.
IC131: ED06(/RESETD)
Hardware version is obtained from the register of the FPGA
(IC123).
IC131: ED12(/CS60RD), MA*(MMA[*]), MD*(MMD[*])
Resets the panel micro computer (IC150).
IC131: ED05(/PN_IC)
Cancels reset of the panel micro computer (IC150) in 1 (us).
IC131: ED05(/PN_IC)
Checks the pressed switch and enters start-up mode.
Conducts check-sum inspection of the Main Program area.
In case of correct check-sum, operation of the Main Program is
started (From address 00020000h of the Flash ROM (IC133)).
In case of wrong check-sum, all the LEDs of the product
fl
ash
and no further processing is conducted.
Main Program starts.
Resets the panel micro computer (IC150).
IC131: ED05(/PN_IC)
Cancels reset of the panel micro computer (IC150) in 1 (us).
IC131: ED05(/PN_IC)
Opening screen
Shows the opening screen.
Conducts model identi
fi
cation check.
If the result of the check is OK, the next procedure will be
conducted.
If the result of the check is disapproving, all the LEDs of the
product
fl
ash and no further processing is conducted.
Executes reset for the A/D converter (IC704, IC709, IC710 and
IC712) and D/A converter (IC751, IC809 and IC810).
IC131: ED01(/AD_RESET), ED02(/DAC_RESET, /DA_RESET)
Mutes all the channels of the Volume Controller (IC814).
IC131: ED14(/CS62WR), MA*(MMA[*]), MD*(MMD[*])
IC123: IO03(AVC_SCLK), IO04(AVC_DATAI), IO05(/AVC_CS)
Loads product setup data from the EEPROM (IC146).
IC131: ED08(/CS), ED09(SCK), ED10(SI)
Normal Display
Initializes the MCI (IC111). Starts communication with the
DICEII (IC103).
IC131: CS4N(/CS4), MA*(MMA[*]), MD*(MMD[*])
If the Word Clock is delivered from the DICEII (IC103) to SSP1
(IC131) correctly, the following processing will be conducted.
Changes the MUTE_OFF signal level from LOW to HIGH
to apply trigger for canceling mute to the muting circuit in
the FPGA. The following processing will be conducted if the
MUTE_REQ signal (IC131: EA06 (MUTE_REQ)) is turned to
HIGH level.
IC131: ED11(/MUTE_OFF)
Executes reset of the A/D converter (IC704, IC709, IC710 and
IC712) and D/A converter (IC751, IC809 and IC810).
IC131: ED01(/AD_RESET), ED02(/DAC_RESET, /DA_RESET)
Sets the headphones level value in the product setup data to
the Volume Controller (IC814).
IC131: ED14(/CS62WR), MA*(MMA[*]), MD*(MMD[*])
IC123: IO03(AVC_SCLK), IO04(AVC_DATAI), IO05(/AVC_CS)
Cancels mute of the D/A converter (IC809, IC810).
IC131: ED03
IC131: ED14(/CS62WR), MA*(MMA[*]), MD*(MMD[*])
IC123: IO26(/DA4358_CS), IO27(/DA4382_CS), IO28(DA_CDTI),
IO29(DA_CCLK)
Cancels mute of the SSP1 (IC131).
Summary of Contents for MR816x
Page 26: ...26 MR816CSX MR816X DM Circuit Board B B 2NA WK58180 ...
Page 27: ...27 MR816CSX MR816X Component side 部品側 3 layer 3 層 Scale 70 100 B B 2NA WK58180 ...
Page 28: ...28 MR816CSX MR816X DM Circuit Board C C 2NA WK58180 ...
Page 29: ...29 MR816CSX MR816X Component side 部品側 6 layer 6 層 Scale 70 100 C C 2NA WK58180 ...
Page 30: ...30 MR816CSX MR816X DM Circuit Board D D 2NA WK58180 ...
Page 31: ...31 MR816CSX MR816X Pattern side パターン側 Scale 70 100 D D 2NA WK58180 ...
Page 33: ...33 MR816CSX MR816X Pattern side パターン側 G G G G H H PN Circuit Board H H 2NA WM06850 ...