12-14
MCF5272 User’s Manual
Register Description and Programming Model
Figure 12-12. USB Endpoint 0 Status Register (EP0SR)
Table 12-10 lists field descriptions the USB endpoint 0 status register.
12.3.2.10 USB Endpoint 0 IN Configuration Register (IEP0CFG)
Figure 12-13 shows the USB Endpoint 0 IN configuration (IEP0CFG) register.
15
12
11
10
3
2
1
0
Field
CONFIG
WAKE_ST
—
HALT_ST DIR
—
Reset
0000_0000_0000_0001
R/W
Read
Addr
MBAR + 0x1026
Table 12-10. EP0SR Field Descriptions
Bits
Name
Descriptions
15–12
CONFIG
Current configuration number. Indicates which configuration is active. Receiving a
SET_CONFIGURATION USB standard device request sets the active configuration. A
configuration setting of 0 means that the device is unconfigured. Valid only when
EPISR0[DEV_CFG] is set
11
WAKE_ST Remote wakeup status. Indicates whether the USB module has been enabled to
generate remote wakeup resume signaling.
1 Enabled. The USB host has issued the SET_FEATURE request with the Remote
wakeup feature selector set.
0 Disabled. The USB host has issued the CLEAR_FEATURE request with the remote
wakeup feature selector set, or has not set this feature since a USB or system reset
has occurred.
10–3
—
Reserved, should be cleared.
2
HALT_ST
Current endpoint 0 halt status. Indicates whether endpoint 0 is currently halted or active.
Endpoint 0 is halted if there is an error processing a request. A halt is cleared
automatically by a SETUP packet.
1 Endpoint 0 halted
0 Endpoint 0 active
1
DIR
Current endpoint 0 direction. Indicates whether endpoint 0 is currently accessed as an IN
or OUT endpoint.
1 The endpoint is configured as an IN endpoint
0 The endpoint is configured as an OUT endpoint
0
—
Reserved, should be cleared.
Содержание DigitalDNA ColdFire MCF5272
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Страница 90: ...2 42 MCF5272 User s Manual Exception Processing Overview ...
Страница 96: ...3 6 MCF5272 User s Manual MAC Instruction Execution Timings ...
Страница 158: ...5 46 MCF5272 User s Manual Motorola Recommended BDM Pinout ...
Страница 184: ...7 12 MCF5272 User s Manual Interrupt Controller Registers ...
Страница 338: ...13 44 MCF5272 User s Manual Application Examples ...
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Страница 492: ...21 10 MCF5272 User s Manual Non IEEE 1149 1 Operation ...
Страница 548: ...INDEX Index 12 MCF5272 User s Manual ...