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6-130
GY-2120WD/WS
6-2. Description of Commands
Note)
SECH_FLAG b7:1=capstan 4FG interrupt occurred
b6: no use
b5: 1=speed changed (used for error detection)
b4: 1=speed changed (used for SV)
b3: 1=FG division ratio changed
b2: 1=required to drive against for breaking
b1: 1=actual direction equals to reference direction
b0: 1=ref.direction is FWD
offset
Data Name
Meaning
40h
TH_TIMERS
Upper : TH_MOTOR_TIMER (motor conduction time measured value)
Lower : TH_FG_TIMER (Time it is not operating although power is supplied)
42h
TH_FG_NUMBER
Loading ring phase
44h
TH_FG_NUMBER_OLD
Previous loading ring phase
46h
T_TH_TARUMI
Distance moved by tape by loading ring during unthreading
48h
TARUMI
Slack amount of T reel during unthreading
4Ah
TH_FG_NUMBER_BAK
Previous loading ring phase
4Ch
T_FG_RDBUFF
Movement of T reel during threading
4Eh
T_FG_RDBUFF_PSET
Number of previous T reel FGs for detecting slack
50h
S_FG_RDBUFF
Movement of S reel during threading
52h
S_FG_RDBUFF_PSET
Number of previous S reel FGs for detecting slack
54h
SECH_FG_CTR&DIV
Upper : SECH_FG_CTR (count when no capstan FG)
Lower : CAP_4FG_DIV (frequency division ratio of capstan FG)
56h
SECH_PWM_DATA
Capstan PWM output
58h
CAP_NOR_BIAS_DATA
Capstan phase loop output
5Ah
CAP_CONT_SPEED
Table speed obtained from capstan FG count
5Ch
SECH_SP_REF
Tape targetted speed
5Eh
SECH_SP_REF2
SECH_SP_REF filtered
60h
CAP_4FG_SP
Tape speed sought by calculating the capstan FG period by the clock
62h
NOR_PB_CTL_ERR
CTL error during play
64h
SECH_MOD&CTL_STS
Upper : SECH_MOD (b0 : 1 SV determines the speed 0 SY)
Lower : PB_CTL_PH_STATUS (b1=1&b0=0 : CTL lock)
66h
SAT_A_ENV_DATA
SAT signal A/D conversion value
68h
C_LONG_CUEUP&AVE
Upper : C_LONG_CUEUP (Clears past SAT data at !=0)
Lower : RF_AVE_COUNT (Number of time 1st level was executed)
6Ah
C_EDIT_MODE&STS
Upper : C_EDITT_MODE
Lower : C_SV_STATUS
+
2 (b4:drum lock, b5:cap lock)
6Ch
SAT_FLAGS
Upper : SAT_CNT_EN_FLG
+
2 (Climbing permitted at b0:0)
Lower : SAT_1ST_ONLY_FLG
+
1
6Eh
SAT_FLAGS2
Upper : SAT_1ST_STG_FIN_FLG
+
1 (1st level ends at b0:1)
Lower : SAT_OPEN_CNT_FLG
70h
SAT_ERR_FLG
Upper : Not used
Lower : SAT_ERR_FLG (b0:X length correction failed) b1:rec head clog)
72h
Dummy data
Constant 9876h. Indicates not used.
74h
Dummy data
Constant 9876h. Indicates not used.
76h
Dummy data
Constant 9876h. Indicates not used.
78h
Dummy data
Constant 9876h. Indicates not used.
7Ah
Dummy data
Constant 9876h. Indicates not used.
7Ch
Dummy data
Constant 9876h. Indicates not used.
7Eh
Dummy data
Constant 1234h. Used in place of marker.
Summary of Contents for GY-2120WD
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Page 437: ...7 3 GY 2120WD WS Index Mechanical Deck Overall Block 6 7 9 8 2 1 3 4 5 ...
Page 469: ...8 1 GY 2120WD WS 8 1 Section 8 Block Diagrams Frame Wiring ...
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