
EZ-USB FX2 Technical Reference Manual v2.1 Appendix C - 33
EZ-USB FX2 Registers & Buffers
92 1 MPAGE
(1)
Upper Addr Byte of MOVX using
@R0 / @R1
A15 A14 A13 A12 A11 A10 A9 A8 00000000 RW used with the indirect ad-
dressing instuction(s), ie.
MOVX @R0,A _where
MPAGE = upper addr byte
and R0 contains lower addr
byte _an app. example
would be to copy EP1 out/in
data to a buffer
93 5 reserved
98 1 SCON0 Serial Port 0 Control (bit addres-
sable)
SM0_0 SM1_0 SM2_0 REN_0 TB8_0 RB8_0 TI_0 RI_0 00000000 RW
99 1 SBUF0 Serial Port 0 Data Buffer D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
9A 1 AUTOPTRH1
(1)
Autopointer 1 Address H A15 A14 A13 A12 A11 A10 A9 A8 00000000 RW
9B 1 AUTOPTRL1
(1)
Autopointer 1 Address L A7 A6 A5 A4 A3 A2 A1 A0 00000000 RW
9C 1 reserved
9D 1 AUTOPTRH2
(1)
Autopointer 2 Address H A15 A14 A13 A12 A11 A10 A9 A8 00000000 RW
9E 1 AUTOPTRL2
(1)
Autopointer 2 Address L A7 A6 A5 A4 A3 A2 A1 A0 00000000 RW
9F 1 reserved
A0 1 IOC
(1)
Port C (bit addressable) D7 D6 D5 D4 D3 D2 D1 D0 xxxxxxxx RW
A1 1 INT2CLR
(1)
Interrupt 2 clear x x x x x x x x xxxxxxxx W
A2 1 INT4CLR
(1)
Interrupt 4 clear x x x x x x x x xxxxxxxx W
A3 5 reserved
A8 1 IE Interrupt Enable (bit address-
able)
EA ES1 ET2 ES0 ET1 EX1 ET0 EX0 00000000 RW
A9 1 reserved
AA 1 EP2468STAT
(1)
Endpoint 2,4,6,8 status flags EP8F EP8E EP6F EP6E EP4F EP4E EP2F EP2E 01011010 R Check Empty/Full status of
EP 2,4,6,8 using MOV
AB 1 EP24FIFOFLGS
(1)
Endpoint 2,4 slave FIFO status
flags
0 EP4PF EP4EF EP4FF 0 EP2PF EP2EF EP2FF 00100010 R Check Prg/Empty/Full status
of EP 2,4 slave FIFO using
MOV instr.
AC 1 EP68FIFOFLGS
(1)
Endpoint 6,8 slave FIFO status
flags
0 EP8PF EP8EF EP8FF 0 EP6PF EP6EF EP6FF 01100110 R Check Prg/Empty/Full status
of EP 6,8 slave FIFO using
MOV instr.
AD 2 reserved
AF 1 AUTOPTRSETUP
(1)
Autopointer 1&2 Setup 0 0 0 0 0 APTR2INC APTR1INC APTREN 00000110 RW APTRxINC=1 inc autopoint-
er(s); APTRxINC=0 freeze
autopointer(s)
APTREN=1 RD/WR stobes
asserted when using MOVX
version
B0 1 IOD
(1)
Port D (bit addressable) D7 D6 D5 D4 D3 D2 D1 D0 xxxxxxxx RW
B1 1 IOE
(1)
Port E (NOT bit addressable) D7 D6 D5 D4 D3 D2 D1 D0 xxxxxxxx RW
B2 1 OEA
(1)
Port A Output Enable D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
B3 1 OEB
(1)
Port B Output Enable D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
B4 1 OEC
(1)
Port C Output Enable D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
B5 1 OED
(1)
Port D Output Enable D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
B6 1 OEE
(1)
Port E Output Enable D7 D6 D5 D4 D3 D2 D1 D0 00000000 RW
B7 1 reserved
Hex Size Name Description b7 b6 b5 b4 b3 b2 b1 b0 Default Access Notes
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