参数资料
| 型号： | CS61884-IRZ |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 26/72页 |
| 文件大小： | 0K |
| 描述： | IC LN INTERF T1/E1/J1 160-LFBGA |
| 标准包装： | 126 |
| 功能： | 线路接口单元（LIU） |
| 接口： | E1，J1，T1 |
| 电路数： | 8 |
| 电源电压： | 3.14 V ~ 3.47 V |
| 功率（瓦特）： | 1.73W |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 160-LFBGA |
| 供应商设备封装： | 160-TFGBA（13x13） |
| 包装： | 散装 |
| 包括： | AMI 编码器和解码器，B8ZS 编码器和解码器，HDB3 编码器和解码器，LOS 检测 |
| 产品目录页面： | 759 (CN2011-ZH PDF) |
| 其它名称： | 598-1717 |
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CS61884
32
DS485F3
13. HOST MODE
Host mode allows the CS61884 to be configured
and monitored using an internal register set. (Refer
page 10). The term, “Host mode” applies to both
Parallel Host and Serial Host modes.
All of the internal registers are available in both Se-
rial and Parallel Host mode; the only difference is
in the functions of the interface pins, which are de-
scribed in Table 8.
Serial port operation is compatible with the serial
ports of most microcontrollers. Parallel port opera-
tion can be configured to be compatible with 8-bit
microcontrollers from Motorola or Intel, with both
multiplexed or non-multiplexed address/data bus-
ses. (Refer to Table 9 on page 34 for host mode
registers).
13.1 SOFTWARE RESET
A software reset can be forced by writing the Soft-
page 36). A software reset initializes all registers to
their default settings and initializes all internal state
machines.
13.2 Serial Port Operation
Serial port host mode operation is selected when
the MODE pin is left open or set to VCC/2. In this
mode, the CS61884 register set is accessed by set-
ting the chip select (CS) pin low and communicat-
ing over the SDI, SDO, and SCLK pins. Timing
over the serial port is independent of the transmit
and receive system timing. Figure 13 illustrates the
format of serial port data transfers.
A read or write is initiated by writing an ad-
dress/command byte (ACB) to SDI. Only the
ADR0-ADR4 bits are valid; bits ADR5-ADR6 are
do not cares. During a read cycle, the register data
addressed by the ACB is output on SDO on the next
eight SCLK clock cycles. During a write cycle, the
data byte immediately follows the ACB.
Data is written to and read from the serial port in
LSB first format. When writing to the port, SDI
data is sampled by the device on the rising edge of
SCLK. The valid clock edge of the data on SDO is
controlled by the CLKE pin. When CLKE is low,
data on SDO is valid on the falling edge of SCLK.
When CLKE is high, data on SDO is valid on the
raising edge of SCLK. The SDO pin is Hi-Z when
not transmitting. If the host processor has a bidirec-
tional I/O port, SDI and SDO may be tied together.
Table 8. Host Control Signal Descriptions
HOST CONTROL SIGNAL DESCRIPTIONS
PIN NAME
PIN #
HARDWARE
SERIAL
PARALLEL
MODE
11
LOW
VDD/2
HIGH
MUX
43
BITSEN0
-
MUX
CODEN/MOT/INTL
88
CODEN
-MOT/INTL
ADDR [4]
12
GND
-
ADDR[4]
ADDR[3:0]
13-16
ADDR[3:0]
-
ADDR [3:0]
LOOP[7:0], DATA[7:0]
28-21
LOOP[7:0]
-
DATA[7:0]
INT
82
Pulled Up
INT
SDO/ACK/RDY
83
NC
SDO
ACK/RDY
LEN0/SDI/DS/WR
84
LEN0
SDI
DS/WR
LEN1/R/W/RD
85
LEN1
-
R/W/RD
LEN2/SCLK/AS/ALE
86
LEN2
SCLK
AS/ALE
JASEL/CS
87
JASEL
CS
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