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参数资料
| 型号： | 5962-9309701M2A |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 16/19页 |
| 文件大小： | 383K |
| 代理商： | 5962-9309701M2A |
Addressing Logic (Continued)
LOAD will load the first byte of data. Auto Incrementing is
disabled on the falling edge of LOAD after ADDRDATA and
LHBYTE goes low.
Manual Addressing Mode
Cycle #
Load Falling Edge
Load Rising Edge
1
Enable Manual Addressing
Load Address m
2
Enable Lbyte Data Load
Load Lbyte m
3
Enable Hbyte Data Load
Load Hbyte m
4
Enable Manual Addressing
Load Address n
5
Enable Lbyte Data Load
Load Lbyte n
6
Enable Hbyte Data Load
Load Hbyte n
Auto Addressing Mode
Cycle #
Load Falling Edge
Load Rising Edge
1
Enable Auto Addressing
Load Start Address n
2
Enable Lbyte Data Load
Load Lbyte (n)
3
Enable Hbyte Data Load
Load Hbyte (n); Inc Counter
4
Enable Lbyte Data Load
Load Lbyte (n+1)
5
Enable Hbyte Data Load
Load Hbyte (n+1); Inc Counter
6
Enable Manual Addressing
Load Address
ADDRDEC LOGIC
The ADDRDEC logic decodes the current address and gen-
erates the enable signal for the appropriate register. The en-
able values for the registers and counters change on the fall-
ing edge of LOAD. Two types of ADDRDEC logic is enabled
by 2 pair of addresses, Addresses 22 or 54 (Vectored Re-
start logic) and Addresses 23 or 55 (Vectored Clear logic).
Loading these addresses will enable the appropriate logic
and put the part into either a Restart (all counter registers are
reinitialized with preprogrammed data) or Clear (all registers
are cleared to zero) state. Reloading the same ADDRDEC
address will not cause any change in the state of the part.
The outputs during these states are frozen and the internal
CLOCK is disabled. Clocking the part during a Vectored Re-
start or Vectored Clear state will have no effect on the part.
To resume operation in the new state, or disable the Vec-
tored
Restart
or
Vectored
Clear
state,
another
non-ADDRDEC address must be loaded. Operation will be-
gin in the new state on the rising edge of the non-ADDRDEC
load pulse. It is recommended that an unused address be
loaded following an ADDRDEC operation to prevent data
registers from accidentally being corrupted. The following
Addresses are used by the device.
Address 0
Status Register REG0
Address 1–18Data Registers REG1–REG18
DS100232-7
DS100232-8
www.national.com
6
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| 5962-9310501MYA | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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