參數(shù)資料
型號(hào): MAX3301EEBA-T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 通用總線功能
英文描述: CLAMP
中文描述: LINE TRANSCEIVER, PBGA25
封裝: 5 X 5 MM, UCSP-25
文件頁(yè)數(shù): 15/33頁(yè)
文件大?。?/td> 935K
代理商: MAX3301EEBA-T
M
USB On-the-Go Transceiver and Charge Pump
______________________________________________________________________________________
15
Applications Information
Data Transfer
Transmitting Data to the USB
The MAX3301E transceiver features two modes of trans-
mission: DAT_SE0 or VP_VM (see Table 3). Set the
transmitting mode with dat_se0 (bit 2 in control register
1, see Table 7). In DAT_SE0 mode with
OE/INT
low,
DAT_VP specifies data for the differential transceiver,
and SE0_VM forces D+/D- to the single-ended zero
(SE0) state. In VP_VM mode with
OE/INT
low, DAT_VP
drives D+, and SE0_VM drives D-. The differential
receiver determines the state of RCV.
Receiving Data from the USB
The MAX3301E transceiver features two modes of
receiving data: DAT_SE0 or VP_VM (see Table 4). Set
the receiving mode with dat_se0 (bit 2 in control register
1, see Table 7). In DAT_SE0 mode with
OE/INT
high,
DAT_VP is the output of the differential receiver and
SE0_VM indicates that D+ and D- are both logic-low. In
VP_VM mode with
OE/INT
high, DAT_VP provides the
input logic level of D+ and SE0_VM provides the input
logic level of D-. The differential receiver determines the
state of RCV. VP and VM echo D+ and D-, respectively.
OE/INT
OE/INT
controls the direction of communication.
OE/INT
can also be programmed to act as an interrupt output
when in suspend mode. The output enable portion con-
trols the input or output status of DAT_VP/SE0_VM and
D+/D-. When
OE/INT
is a logic 0, DAT_VP and SE0_VM
function as inputs to the D+ and D- outputs in a method
depending on the status of dat_se0 (bit 2 in control reg-
ister 1). When
OE/INT
is a logic 1, DAT_VP and SE0_VM
indicate the activity of D+ and D-.
OE/INT
functions as an interrupt output when the
MAX3301E is in suspend mode and oe_int_en = 1 (bit 5
in control register 1, see Table 7). In this mode,
OE/INT
detects the same interrupts as
INT
. Set irq_mode (bit 1
in special-function register 2, see Table 15) to a 0 to
program
OE/INT
as an open-drain interrupt output. Set
irq_mode to a 1 to configure
OE/INT
as a push-pull
interrupt output.
RCV
RCV monitors D+ and D- when receiving data. RCV is a
logic 1 for D+ high and D- low. RCV is a logic 0 for D+
low and D- high. RCV retains its last valid state when D+
and D- are both low (single-ended zero, or SE0). RCV
asserts low in suspend mode. Table 4 shows the state
of RCV.
SPD
Use hardware or software to control the slew rate of the
D+ and D- terminals. The SPD input sets the slew rate of
the MAX3301E when spd_susp_ctl (bit 1 in special-func-
tion register 1, see Table 14) is 0. Drive SPD low to
select low-speed mode (1.5Mbps). Drive SPD high to
select full-speed mode (12Mbps). Alternatively, when
spd_susp_ctl (bit 1 of special-function register 1) is a 1,
software controls the slew rate. The SPD input is ignored
when using software to control the data rate. The speed
bit (bit 0 of control register 1, see Table 7) sets the slew
rate when spd_susp_ctl = 1.
SUS
Use hardware or software to control the suspend mode
of the MAX3301E. Set spd_susp_ctl (bit 1 of special-
function register 1, see Table 14) to 0 to allow the SUS
input to enable and disable the suspend mode of the
MAX3301E. Drive SUS low for normal operation. Drive
SUS high to enable suspend mode. RCV asserts low in
suspend mode while all other circuitry remains active.
Alternatively, when the spd_susp_ctl bit (bit 1 of special-
function register 1) is set to a 1, software controls the
suspend mode. Set the suspend bit (bit 1 of control reg-
ister 1, see Table 7) to a 1 to enable suspend mode. Set
the suspend bit to zero to resume normal operation. The
SUS input is ignored when using software to control sus-
pend mode. The MAX3301E must be in full-speed mode
(SPD = high or speed = 1) to issue a remote wake-up
from the device when in suspend mode.
RESET
The active-low
RESET
input allows the MAX3301E to be
asynchronously reset without cycling the power supply.
Drive
RESET
low to reset the internal registers (see
Tables 7–15 for the default power-up states). Drive
RESET
high for normal operation.
2-Wire I
2
C-Compatible Serial Interface
A register file controls the various internal switches and
operating modes of the MAX3301E through a simple 2-
wire interface operating at clock rates up to 400kHz.
This interface supports data bursting, where multiple
data phases can follow a single address phase.
UART Mode
Set uart_en (bit 6 in control register 1) to 1 to place the
MAX3301E in UART mode. D+ transfers data to DAT_VP
and SE0_VM transfers data to D- in UART mode.
相關(guān)PDF資料
PDF描述
MAX3301EETJ CLAMP
MAX333A Precision, Quad, SPDT, CMOS Analog Switch(MAX333的改進(jìn)型,低導(dǎo)通電阻模擬開關(guān))
MAX333 High Speed Quad SPST Analog Switches(接通電阻175Ω,漏電流5nA,導(dǎo)通速率1000ns,單刀單擲模擬開關(guān))
MAX334EJE High Speed Quad SPST Analog Switch
MAX334EWE High Speed Quad SPST Analog Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3301EETI+ 制造商:Maxim Integrated Products 功能描述:USB ON-THE-GO TRANSCEIVERS AND CHARGE PUMPS - Rail/Tube
MAX3301EETJ 功能描述:USB 接口集成電路 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
MAX3301EETJ+ 功能描述:USB 接口集成電路 USB On-the-Go Tcvr & Charge Pump RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
MAX3301EETJ+GH7 功能描述:USB 接口集成電路 USB On-the-Go Transceiver and Charge Pump RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
MAX3301EETJ+T 功能描述:USB 接口集成電路 USB On-the-Go Tcvr & Charge Pump RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20