125
n8/n12
SEQUENCE WHEN POWER IS TURNED UP
1. Outline
This chapter explains major processes necessary for system start-up such as device initialization from turning on the power to standard
condition when all the tasks are started.
Use this chapter as a guide for detecting system malfunctions in case it is impossible to enter the test program.
2. Device to be operated
Device
If the device is necessary to enter the test program
SSP1(MAIN)
K
!
DM-A circuit board (n8)/DM-B circuit board (n12): IC107
SSP1(SUB)
—
FLASH ROM
K
!
DM-A circuit board (n8)/DM-B circuit board (n12): IC108
SRAM
K
!
DM-A circuit board (n8)/DM-B circuit board (n12): IC109
SDRAM
—
CPLD
K
!
DM-A circuit board (n8)/DM-B circuit board (n12): IC111
I
2
C
K
!
DM-A circuit board (n8)/DM-B circuit board (n12): IC115
E-BUS
K
!
PN-A circuit board (n8)/PN-B circuit board (n12): IC100, IC200,
PNSB circuit board (n12 only): IC1
MCI
—
ADC · DAC
—
HA
—
MUTE Controller
—
DICEII (including
peripherals)
—
If the device with a circle mark (
K
) in the above table does not work normally, it is impossible to enter the test program.
In other words, these devices should be checked if it is impossible to enter the test program.
The next section, “Start-up sequence” explains the controls of these devices.
3. Start-up
sequence
This section explains control of each device at each moment after the power is turned on.
If no LED lights on when powered, some of these devices may not be operating normally.
In that case, refer to the following descriptions on sequence indicated in
boldface
.
“/RESET” signal is controlled through the hardware when the power is turned on and the following devices start up.
SSP1(MAIN), SSP1(SUB), FLASH ROM, CPLD
Check that the “/RESET” signal level of each device is at High (+3.3 V typ.).
“/RESET” signal source: DM-A circuit board (n8)/DM-B circuit board (n12) IC104-1 pin
Reset cancellation factor: Detecting that core voltage of SSP1 (IC107, IC110) is 1.65 V or more.
“/RESET” signal pin of each device:
SSP1(MAIN)
(DM-A circuit board (n8)/DM-B circuit board (n12)) IC107-202 pin
SSP1(SUB)
(DM-A circuit board (n8)/DM-B circuit board (n12)) IC110-202 pin
FLASH ROM
(DM-A circuit board (n8)/DM-B circuit board (n12)) IC108-12 pin
CPLD
(DM-A circuit board (n8)/DM-B circuit board (n12)) IC111-64 pin
The ARM of the SSP1 (MAIN) starts and program is fetched from the FLASH ROM.
Check that levels at each control line (/CS, data bus, address bus, /MWR, /MRD) between the SSP1 (MAIN)
and FLASH ROM are moving.
SSP1(MAIN)
DM-A circuit board (n8)/DM-B circuit board (n12): IC107
FLASH ROM
DM-A circuit board (n8)/DM-B circuit board (n12): IC108
/CS
151 pin
26 pin
Data bus
MMD[0:15]
105,106,108-113,115-118,120-122,124 pin
29-36,38-45 pin
Address bus
MMA[1:20]
125-128,132-137,139-141,143-146,148-150 pin
1-9,16-25,48 pin
/MWR
101 pin
11 pin
/MRD
100 pin
28 pin
Initializes peripherals such as SSP1 universal port and serial I/O.
Содержание N12 - n12 Digital Mixing Studio
Страница 16: ...n8 n12 16 DIMENSIONS 寸法図 145 8 515 0 560 8 368 145 31 517 14 n12 n8 Unit 単位 mm ...
Страница 46: ...n8 n12 46 B B DM A Circuit Board n8 DM B Circuit Board n12 DM A DM B 2NA WH29160 1 ...
Страница 49: ...49 n8 n12 Pattern side パターン側 HA A Circuit Board n8 n12 HA B Circuit Board n12 HA A HA B 2NA WH30710 1 ...
Страница 53: ...53 n8 n12 Pattern side パターン側 Component side 部品側 6 layer 6 層 MLAN Circuit Board MLAN 2NA WK93970 ...
Страница 55: ...55 n8 n12 C C to Wiring Assembly AC D D Component side 部品側 Pattern side パターン側 PS 2NA WH17750 1 ...
Страница 57: ...57 n8 n12 E E PN A PN B 2NA WH17690 Component side 部品側 Scale 66 100 ...
Страница 60: ...n8 n12 60 F F PN A Circuit Board n8 PN B Circuit Board n12 PN A PN B 2NA WH17690 ...
Страница 61: ...61 n8 n12 F F Pattern side パターン側 Scale 70 100 PN A PN B 2NA WH17690 ...
Страница 62: ...n8 n12 62 G G to DM B CN111 to DM B CN102 to PS CN103 H H PNSB Circuit Board n12 PNSB 2NA WH17720 2 ...
Страница 63: ...63 n8 n12 G G H H Component side 部品側 Pattern side パターン側 Scale 75 100 PNSB 2NA WH17720 2 ...
Страница 112: ...n8 n12 112 プログラムのアップデート 起動操作キーとバージョン表示の位置 n8 バージョン確認 バージョンアップ バージョンアップ 起動操作 選択キー バージョン表示 n12 起動操作 選択キー バージョン表示 バージョン確認 ...