參數(shù)資料
型號(hào): FT4232H MINI MODULE
廠(chǎng)商: FTDI, Future Technology Devices International Ltd
文件頁(yè)數(shù): 14/45頁(yè)
文件大小: 0K
描述: MOD USB HS FT4232H EVAL
產(chǎn)品變化通告: Part Number Change Jan 2011
產(chǎn)品目錄繪圖: FT(22, 42)32HQ MINI MOD
標(biāo)準(zhǔn)包裝: 5
主要目的: 接口,USB 2.0 至 UART(RS232)電橋
嵌入式: 是,ASIC
已用 IC / 零件: FT4232H
主要屬性: 高速,300 波特 ~ 12 M 波特,安全識(shí)別號(hào)
次要屬性: 仿真 JTAG、SPI、I2C、位響應(yīng)或其它同步串行
已供物品:
產(chǎn)品目錄頁(yè)面: 633 (CN2011-ZH PDF)
相關(guān)產(chǎn)品: FT4232HQ - TRAY-ND - IC USB HS QUAD UART/SYNC 64-QFN
FT4232HL - TRAY-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-6-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-6-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-1-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-1-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-2-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-2-ND - IC USB HS QUAD UART/SYNC 64-LQFP
其它名稱(chēng): 768-1031
FT4232HQ_MINI MOD
Copyright 2010 Future Technology Devices International Limited
21
Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.2
Clearance No.: FTDI#78
4.4.1 MPSSE Adaptive Clocking
Adaptive clocking is a new MPSSE feature added to the FT24232H MPSSE engine.
The mode is effectively handshaking the CLK signal with a return clock RTCK. This is a technique used by
ARM processors.
The FT4232H will assert the CLK line and wait for the RTCK to be returned from the target device to
GPIOL3 line before changing the TDO (data out line).
FT4232H
ARM CPU
RTCK
TCK
TDO
GPIOL3
Figure 4.5 Adaptive Clocking Interconnect
TDO
TCK
RTCK
TDO changes on falling
edge of TCK
Figure 4.6: Adaptive Clocking waveform.
Adaptive clocking is not enabled by default.
See: AN_108 Command Processor for MPSSE and MCU Host Bus Emulation Modes.
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