28-30
MC9328MX1 Reference Manual
MOTOROLA
USB Device Port
28.3.16 Endpoint n Last Read Frame Pointer Registers
The Endpoint n Last Read Frame Pointer Registers hold the location of the most recently read frame or the
start of the frame currently in transmission.
The number of Endpoint n Last Read Frame Pointer Registers in the MC9328MX1 depends on the number
of endpoints configured.
USB_EP0_LRFP
USB_EP1_LRFP
USB_EP2_LRFP
USB_EP3_LRFP
USB_EP4_LRFP
USB_EP5_LRFP
Endpoint 0 Last Read Frame Pointer Register
Endpoint 1 Last Read Frame Pointer Register
Endpoint 2 Last Read Frame Pointer Register
Endpoint 3 Last Read Frame Pointer Register
Endpoint 4 Last Read Frame Pointer Register
Endpoint 5 Last Read Frame Pointer Register
Addr
0x00212048
0x00212078
0x002120A8
0x002120D8
0x00212108
0x00212138
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
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
LRFP
TYPE
r
r
r
r
r
r
r
r
r
r
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 28-20. Endpoint n Last Read Frame Pointer Registers Description
Name
Description
Reserved
Bits 31–6
Reserved—These bits are reserved and should read 0.
LRFP
Bits 5–0
Last Read Frame Pointer
—Indicates the start of the most recently read frame or the start of the
frame currently in transmission. The LRFP can be read and written for debugging purposes. For the
frame retransmit function, the LRFP indicates the point to begin retransmission of the data frame.
There are no safeguards to prevent retransmitting data that was overwritten. When the FRAME bit is
not set, this pointer has no meaning.
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 ...