參數(shù)資料
型號(hào)： DM6380L
廠商： Electronic Theatre Controls, Inc.
英文描述： V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
中文描述： .34綜合數(shù)據(jù)/傳真/語(yǔ)音/揚(yáng)聲器調(diào)制解調(diào)器設(shè)備集
文件頁(yè)數(shù)： 9/40頁(yè)
文件大?。?/td> 341K
代理商： DM6380L
DM336P
V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
Final
Version: DM336P-DS-F02
August 15, 2000
9
d. Modem Output Port Register: Address D000H
Write only
bit7
bit6
bit5
bit4
bit3
PO0 SEL2 SEL1 /POR
bit2
bit1
bit0
These 4 bits work as output ports in response to the
88th, 89th, 90th and 47th pins of this chip (see pin
description).
e. PnP Isolation & Resource Data Port: Address
F800H
Write only
The PnP isolation and resource data can be byte-
sequentially written to the corresponding memory
(built-in SRAM) through this register.
f. Auto-configuration Register: Address F400H
bit2 bit1 bit0 IRQ bit5 bit4 bit3
0
0
0
3
0
0
1
4
0
1
0
5
0
1
1
7
1
0
0
10
1
0
1
11
1
1
0
12
1
1
1
15
I/O
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
03F8-03FF(COM1)
02F8-02FF(COM2)
03E8-03EF(COM3)
02E8-02EF(COM4)
03F0-03F7(COM5)
02F0-02F7(COM6)
03E0-03E7(COM7)
02E0-02E7(COM8)
The default I/O base and IRQ data stored in 94C46
should be loaded to this register by micro-controller,
and then enable the default configuration. Micro-
controller can also get the current I/O base and IRQ
information by a read from this register.
The configuration determined by this register should
be disabled when the register detects the Initiation
Key described in the next section.
Bit 6: When this bit is set to inform micro-controller
that the current I/O base and IRQ data should
be stored to 93C46 as the default setting at the
next power-on reset through programming the
Auto-configuration Register, this bit should be
cleared by micro-controller.
Bit 7: When bit 7 is set, it enables hardware
configuration set according to bit 0-bit 5
(Jumper mode) and load the proper value of
PnP Registers including I/O and Interrupt
Configuration Registers. This bit will be reset,
when it receives PnP Initial Key sequence.
* When reset condition occurred, the I/O and Interrupt
configuration registers must be reset to default
value according to bit 0 - bit 5.
4. UART(16550A) Emulation Registers
a. Receiver Buffer (Read), Transmitter Holding
Register (Write)
Address: 0 (DLAB=0) Reset State 00h
bit7
bit6
bit5
dat7 dat6 dat5 dat4 dat3 dat2 dat1 dat0
bit4
bit3
bit2
bit1
bit0
When this register address is read, it contains the
parallel received data. Data to be transmitted is
written to this register.
b. Interrupt Enable Register (IER): Address 1
Reset State 00h, Write Only
bit7 bit6 bit
5
0
0
0
bit4
bit3
bit2
bit1
bit0
0
Enable
Mode
mStatu
s
Intr
Enable
Line
Status
Intr
Enable
TX
Holdin
g
Regist
er
Intr
Enable
RX
Data
Intr
This 8-bit register enables the four types of interrupts
as described below. Each interrupt source can
activate the INT output signal if enabled by this
register. Resetting bits 0 through 3 will disable all
UART interrupts.
Bit 0: This bit enables the Received Data Available
Interrupt (and timeout interrupts in the FIFO
mode) when set to logic 1.
Bit 1: This bit enables the Transmitter Holding
Register Empty Interrupt when set to logic 1.
Bit 2: This bit enables the Receiver Line Status
Interrupt when set to logic 1.
Bit 3: This bit enables the MODEM Status Interrupt
when set to logic 1.
Bit 4-7: Not used
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