Sess_Vld B_Sess; Access: User Read/Write; Reserved A_Vbus - Freescale Semiconductor ColdFire MCF52210 ColdFire MCF52211 ColdFire MCF52212 ColdFire MCF52213 Reference Manual

15.4.1.7 Interrupt Status Register (OTG_STAT)
The Interrupt Status Register displays the actual value from the external comparator outputs of the ID pin
and VBUS. Figure 15-13
IPSBAR
Offset: 0x1C_0018 (OTG_STAT)
7
R
ID 1_MSEC_EN
W
Reset: 0
Field
7 Indicates the current state of the ID pin on the USB connector
ID 0 Indicates a Type A cable has been plugged into the USB connector
1 Indicates no cable is attached or a Type B cable has been plugged into the USB connector
6 This bit is reserved for the 1msec count, but it is not useful to software.
1_MSEC_EN
5 This bit indicates that the internal signals which control the LINE_STATE_CHG bit (bit 5) of the OTG_INT_STAT
LINE_STATE register have been stable for at least 1 millisecond. First read the LINE_STATE_CHG bit, and then read this bit.
_STABLE If this bit reads as 1, then the value of LINE_STATE_CHG can be considered stable.
0 The LINE_STAT_CHG bit is not yet stable
1 The LINE_STAT_CHG bit has been debounced and is stable
4 Reserved.
3 Session Valid
SESS_VLD 0 The VBUS voltage is below the B session Valid threshold
1 The VBUS voltage is above the B session Valid threshold
2 B Session END
B_SESS 0 The VBUS voltage is above the B session End threshold
_END 1 The VBUS voltage is below the B session End threshold
1 Reserved.
0 A VBUS Valid
A_VBUS 0 The VBUS voltage is below the A VBUS Valid threshold
_VLD 1 The VBUS voltage is above the A VBUS Valid threshold
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
shows the OTG_STAT register.
6 5
Reserved
LINE_STATE
_STABLE
0 0
Figure 15-13. Interrupt Status Register
Table 15-17. OTG_STAT Field Descriptions
Universal Serial Bus, OTG Capable Controller
4 3
B_SESS
SESS_VLD
–
X 0
Description

Access: User read/write

2 1
Reserved
_END
–
0 X
0
A_VBUS
_VLD
0
15-15