SONIX SN32F264 - USB Endpoint Data Toggle Register (USB_EPTOGGLE); USB Endpoint N Buffer Offset Register (Usb_Epnbufos, N = 1 ~ 4); USB Frame Number Register (USB_FRMNO); USB PHY Parameter Register (USB_PHYPRM)

SN32F260 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 114 Version 1.5
10.9.9 USB Endpoint Data Toggle Register (USB_EPTOGGLE)
Address Offset: 0x3C
Reset value: 0x0000 003F
Bit
Name
Description
Attribute
Reset
31:4
Reserved
R
0
3
EP4_DATA01
0: Clear EP4‘s toggle bit to DATA0.
1: HW sets toggle bit automatically.
R/W
1
2
EP3_DATA01
0: Clear EP3‘s toggle bit to DATA0.
1: HW sets toggle bit automatically.
R/W
1
1
EP2_DATA01
0: Clear EP2‘s toggle bit to DATA0.
1: HW sets toggle bit automatically.
R/W
1
0
EP1_DATA01
0: Clear EP1‘s toggle bit to DATA0.
1: HW sets toggle bit automatically.
R/W
1
10.9.10 USB Endpoint n Buffer Offset Register (USB_EPnBUFOS, n = 1 ~ 4)
Address Offset: 0x48, 0x4C, 0x50, 0x54
Reset value: 0x0000 0000
Bit
Name
Description
Attribute
Reset
31:8
Reserved
R
0
7:2
OFFSET[5:0]
The offset address for each endpoint data buffer.
The effective offset address is:
USB_SRAM address + {EPnBUFOS[7:2], 2’b00}
Where USB_SRAM address = USB_BA + 0x100
For endpoint 0, the offset address is fixed as USB_SRAM address.
R/W
40,
80,
C0,
E0
1:0
Reserved
R
0
10.9.11 USB Frame Number Register (USB_FRMNO)
Address Offset: 0x60
Reset value: 0x0000 0000
Bit
Name
Description
Attribute
Reset
31:11
Reserved
R
0
10:0
FRAME_NO[10:0]
The 11-bit frame number of the Start-Of-Frame(SOF) packet. This
number is updated by H/W automatically when SOF packet is
received.
R
0
10.9.12 USB PHY Parameter Register (USB_PHYPRM)
Address Offset: 0x64
Reset value: 0x0000 0000