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參數(shù)資料
| 型號： | DM560P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set |
| 中文描述： | .90綜合數(shù)據(jù)/傳真/語音/揚(yáng)聲器調(diào)制解調(diào)器設(shè)備集 |
| 文件頁數(shù)： | 8/43頁 |
| 文件大小： | 242K |
| 代理商： | DM560P |
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DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set
8
Preliminary
Version: DM560P-DS-P07
August 11, 2000
DM6583 Functional Description
1. Operating Mode Selection
The DM6583 MCU can be used in both internal and
external modem applications. When operating as an
internal modem, the EXT/INTB input (pin 99) must
be attached to ground. When the DM6583 is
operating as an external modem, the EXT/INTB
input (pin 99) must attached to VDD.
2. Micro-controller Program Memory
The DM6583 supports two bank switch control pins
to switch external program memory among four
banks. The DM6583 can access a total of 256K of
external program memory.
Address mapping:
bank0: 00000H - 0FFFFH
bank1: 10000H - 1FFFFH
bank2: 20000H - 2FFFFH
bank3: 30000H - 3FFFFH
For bank switching, three instructions must be
included in software.
Switch to bank1:
CLR P1.3
SETB P1.7
JMP BANK 1 ADDRESS
Switch to bank2:
CLR P1.7
SETB P1.3
JMP BANK 2 ADDRESS
Switch to bank3:
CLR P1.7
CLR P1.3
JMP BANK 3 ADDRESS
Return to bank 0:
SETB P1.7
SETB P1.3
JMP BANK 0 ADDRESS
* For detailed information about the micro-controller,
refer to the
Programmer's Guide to 8032.
Micro-controller Power Down Mode
An instruction that sets the register PD (PCON.1) will
cause the 80C32 to enter power down mode. There
are three ways to wake up the 80C32
(1) Positive pulse signal occurring at the reset pin of
the 80C32
(2) Negative pulse occurring at /RI (P1.0) of the
80C32
(3) Programming the PnP Wake Up Controller
Register.
Enhanced Internal direct Memory
There are two 128 byte banks of internal direct
memory in the 80C32. The system uses the lower
128 bytes under normal conditions. Switching to the
upper bank is achieved by loading register 8FH.1
(SFR of the 80C32) with 1. Switching to the lower
bank can be achieved by loading the same register
with 0.
Reflash Program Memory
By setting 8F.2H the system can switch program and
data memory. If the system uses FLASH memory as
program memory this function is used to reflash
program code by downloading the program to data
memory then switching them.
Example:
SETB 8FH.2
LJMP 0000H
Micro-controller Register Description
UART Clock Register:
Address D4000H Reset State: 06H
Write Only
bit7
X
bit6
dat6
bit5
dat5
bit4
dat4
bit3
dat3
bit2
dat2
Bit1
dat1
bit0
0
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| DM562AP | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in |
| DM562AP_07 | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in |
| DM562P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in |
| DM562P_04 | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in |
| DM5-680J | 制造商:FLORIDA MISC. 功能描述: |
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