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68HC705JB3 Datasheet(PDF) 103 Page - Freescale Semiconductor, Inc

Part # 68HC705JB3
Description  8-bit microcontroller units (MCUs)
PDF  134 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

68HC705JB3 Datasheet(HTML) 103 Page - Freescale Semiconductor, Inc

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November 5, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05JB3
OPTICAL INTERFACE
MOTOROLA
REV 1
11-3
11.2
OPTICAL INTERFACE ENABLE REGISTER
The OIER register controls the operation of the optical interface devices on
Port-A. This register is located at address $0E.
Figure 11-3. Optical Interface Enable Register (TCSR)
OIE0 — Optical Interface pair 0 Enable
1 =
PA0 and PA1 optical interface are enabled.
0 =
PA0 and PA1 optical interface are disabled.
OIE1 — Optical Interface pair 1 Enable
1 =
PA2 and PA3 optical interface are enabled.
0 =
PA2 and PA3 optical interface are disabled.
OIE2 — Optical Interface pair 2 Enable
1 =
PA4 and PA5 optical interface are enabled.
0 =
PA4 and PA5 optical interface are disabled.
OIE3 — Optical Interface pair 3 Enable
1 =
PA6 and PA7 optical interface are enabled.
0 =
PA6 and PA7 optical interface are disabled.
VREF[0:2] — Reference Voltage Selection
These 3 bits are used to select the optical interface reference voltage.
Table 11-2. Optical Interface Reference Voltage Selection
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
OIER
R
TCMPE
VREF2
VREF1
VREF0
OIE3
OIE2
OIE1
OIE0
$000E
W
reset:
00000000
VREF2
VREF1
VREF0
Reference Voltage (mV), VDD=5V
000
300
001
430
010
560
011
690
100
820
101
950
1
1
0
1080
1
1
1
1210
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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