參數(shù)資料
型號： ST72F652R4T1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP64
封裝： 14 X 14 MM, TQFP-64
文件頁數(shù)： 121/160頁
文件大?。?/td> 974K
代理商： ST72F652R4T1
ST7265
63/160
USB INTERFACE (Cont’d)
USB Endpoint RAM Buffers
There are five bidirectional Endpoints including
one control Endpoint 0. Endpoint 1 and Endpoint 2
are counted as 4 bulk or interrupt Endpoints (two
IN and two OUT).
Endpoint 0 and Endpoint 1 are both 2 x 16 bytes in
size. Endpoint 2 is 2 x 64 bytes in size and can be
configured to physically target different USB Data
Buffer areas depending on the MOD[1:0] bits in
the CTLR register (see Figure 39, Figure 40 and
Figure 41).
The USB Data Buffer operates as a double buffer;
while one 512-byte block is being read/written by
the DTC, the USB interface reads/writes the other
512-byte block.
The management of the data transfer is performed
in upload and download mode (2 x 512 byte buff-
ers for Endpoint 2) by the USB Data Buffer Manag-
er.
Figure 39. Endpoint 2 Normal Mode selected by (MOD[1:0] Bits = 00h)
Figure 40. Endpoint 2 Download Mode selected by MOD[1:0] Bits = 10b
Endpoint 2 Buffer OUT
Endpoint 1 Buffer IN
Endpoint 1 Buffer OUT
Endpoint 0 Buffer IN
Endpoint 0 Buffer OUT
Endpoint 2 Buffer IN
16 Bytes
64 Bytes
1550h
155Fh
156Fh
157Fh
158Fh
15CFh
160Fh
USB DATA
512-byte buffer
as 64-byte slices
512-byte buffer
as 64-byte slices
64-byte buffer
1650h
1A4Fh
15CFh
Endpoint 2 Buffer IN
Endpoint 2 Buffer OUT
158Fh
1550h
Endpoint 1 Buffer OUT
Endpoint 1 Buffer IN
Endpoint 0 Buffer OUT
Endpoint 0 Buffer IN
1590h
1
相關(guān)PDF資料
PDF描述
ST733C04LHK1L 1900 A, 400 V, SCR, TO-200AC
ST733C04LHK3 1900 A, 400 V, SCR, TO-200AC
ST7PLITE09Y0U6TR 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
STARX032XXEEXF120.0 INTERVAL-DELAY RELAY, DPDT, MOMENTARY, 24VDC (COIL), 3000mW (COIL), 10A (CONTACT), 28VDC (CONTACT), 120s, SOCKET MOUNT
STARX032XXEEXF4.000 INTERVAL-DELAY RELAY, DPDT, MOMENTARY, 24VDC (COIL), 3000mW (COIL), 10A (CONTACT), 28VDC (CONTACT), 4s, SOCKET MOUNT
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