71M6533/71M6534 Data Sheet
FDS_6533_6534_004
DIO_0[7:0]
DIO_1[7:0]
DIO_2[7:0]
DIO_3[6:0]
SFR 80
SFR 90
SFR A0
SFR B0
0
0
0
0
–
–
–
–
The value on the DIO pins. Pins configured as LCD will read zero. The MPU writes to
these registers to change the data on pins configured as outputs. Pins configured as LCD
or input will ignore writes.
R/W
DIO_0[7:0] corresponds to DIO7 through DIO1 and PB (PB is read on DIO_0[0]).
DIO_1[7:0] corresponds to DIO15 through DIO8. (DIO_1[4] corresponding to
DIO12 is only applicable to the 71M6534)
DIO_2[7:0] corresponds to DIO23 through DIO16. (DIO_2[4] corresponding to
DIO22 is only applicable to the 71M6534)
DIO_3[6:0] corresponds to DIO30 through DIO24. (DIO_3[4] corresponding to
DIO28 is only applicable to the 71M6534)
DIO_EEX[1:0]
2008[7:6]
0
0
R/W When set, converts DIO4 and DIO5 to interface with external EEPROM. DIO4 be-
comes SDCK and DIO5 becomes bi-directional SDATA.
DIO_EEX[1:0]
Function
00
01
10
11
Disable EEPROM interface
2-Wire EEPROM interface
3-Wire EEPROM interface
--not used--
DIO_PV
2008[2]
2008[3]
200F[3]
200F[2]
SFR 9E
SFR 9F
2005[5]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W Causes VARPULSE to be output on DIO7.
R/W Causes WPULSE to be output on DIO6.
R/W Causes XPULSE to be output on DIO8.
R/W Causes YPULSE to be output on DIO9.
R/W Serial EEPROM interface data.
DIO_PW
DIO_PX
DIO_PY
EEDATA[7:0]
EECTRL[7:0]
ECK_DIS
R/W Serial EEPROM interface control.
R/W Emulator clock disable. When ECK_DIS = 1, the emulator clock is disabled.
If ECK_DIS is set, the emulator and programming devices will be unable to
erase or program the device.
EQU[2:0]
2000[7:5]
0
0
R/W Specifies the power equation to be used by the CE.
EX_XFR
EX_RTC
EX_FWCOL
EX_PLL
2002[0]
2002[1]
2007[4]
2007[5]
0
0
0
0
0
0
0
0
R/W
Interrupt enable bits. These bits enable the XFER_BUSY, the RTC_1SEC, the Firm-
WareCollision (FWCOL), and PLL interrupts. Note that if one of these interrupts is to
be enabled, its corresponding MPU EX enable must also be set. See Section 1.3.9
Interrupts for details.
80
© 2007-2009 TERIDIAN Semiconductor Corporation
v1.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
