MC9S08JM16CGTE FREESCALE [Freescale Semiconductor, Inc], MC9S08JM16CGTE Datasheet - Page 309

• Manufacturer Part Number: MC9S08JM16CGTE
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

17.3.11 Address Register (ADDR)
The ADDR register contains the unique 7-bit address the device will be recognized as through USB. The
register is reset to 0x00 after the reset input has gone active or the USB module has decoded USB reset
signaling. That will initialize the address register to decode address 0x00 as required by the USB
specification. Firmware will change the value when it processes a SET_ADDRESS request.
17.3.12 Frame Number Register (FRMNUML, FRMNUMH)
The frame number registers contains the 11-bit frame number. The frame number registers require two
8-bit registers to implement. The low order byte is contained in FRMNUML, and the high order byte is
contained in FRMNUMH. These registers are updated with the current frame number whenever a SOF
TOKEN is received.
Freescale Semiconductor
ADDR[6:0]
FRM[7:0]
Reset
Reset
Field
Field
6–0
7–0
W
W
R
R
FRM7
USB Address — This 7-bit value defines the USB address that the USB module will decode
Frame Number — These bits represent the low order bits of the 11 bit frame number.
0
0
0
7
7
= Unimplemented or Reserved
ADDR6
FRM6
Figure 17-15. Frame Number Register Low (FRMNUML)
0
0
6
6
Table 17-16. FRMNUML Field Descriptions
Figure 17-14. Address Register (ADDR)
Table 17-15. ADDR Field Descriptions
MC9S08JM16 Series Data Sheet, Rev. 2
ADDR5
FRM5
0
0
5
5
ADDR4
FRM4
0
0
4
4
Description
Description
ADDR3
FRM3
3
0
3
0
Universal Serial Bus Device Controller (S08USBV1)
ADDR2
FRM2
0
0
2
2
ADDR1
FRM1
0
0
1
1
ADDR0
FRM0
0
0
0
0
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