Programming Model
MOTOROLA
USB Device Port
28-25
28.3.13 Endpoint n FIFO Data Registers
The Endpoint n FIFO Data Registers are the main interface port for each FIFO. Data to be buffered in the
FIFO, or currently buffered in the FIFO, is accessed through this register. This register can access data
from the FIFO independent of the transmit or receive configuration in byte, word, or longword formats,
however each access must be aligned with the most significant byte (big endian) of the data port. Byte 0 is
bits 31:24, byte 1 is bits 23:16, byte 2 is bits 15:8, and byte 3 is bits 7:0. Byte transfers must access byte 0.
Word transfers must access bytes 0 and 1, and longword transfers must access all four bytes. USB FIFO
data write is in big-endian format.
The direction of the FIFO is determined by the value of the DIR field in the Endpoint n Status/Control
Register.
The number of Endpoint n FIFO Data Registers in the MC9328MX1 depends on the number of endpoints
configured.
USB_EP0_FDAT
USB_EP1_FDAT
USB_EP2_FDAT
USB_EP3_FDAT
USB_EP4_FDAT
USB_EP5_FDAT
Endpoint 0 FIFO Data Register
Endpoint 1 FIFO Data Register
Endpoint 2 FIFO Data Register
Endpoint 3 FIFO Data Register
Endpoint 4 FIFO Data Register
Endpoint 5 FIFO Data Register
Addr
0x0021203C
0x0021206C
0x0021209C
0x002120CC
0x002120FC
0x0021212C
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RXDATA [31:16] (Read) or TXDATA [31:16] (Write)
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0X0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RXDATA [15:0] (Read) or TXDATA [15:0] (Write)
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 28-17. Endpoint n FIFO Data Registers Description
Name
Description
TXDATA [31:0]
Bits 31–0
Transmit Data
—Contains the transmit FIFO write data.
RXDATA [31:0]
Bits 31–0
Read Data
—Contains the receive FIFO read data.
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...