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Control, Setting, and Calibration Registers Initialized from OTP Memory
NAME
0x10
0 V
Value
BO
0x11
0 IPol_RCtune
0x12
0 Xtune_R
Adj
REF
0x13
0 V
_DCOcode
REF
0x14
0 DCOcode1
SH3000UM version 0.95
Copyright ©2002 Semtech Corporation
Table 8: SH3000 MicroBuddy™ Registers 0x10 to 0x17
INIT
INIT
WRITE
EVENT
VALUE
PROTECT
-0-
-0-
P W
?
P W
?
0x??
P W
?
P W
?
P W
?
P W
?
-0-
P W B
?
P W B
?
P W B
?
0x??
P W B
?
P W B
?
P W B
?
P W B
?
P
?
P
?
P
?
P
?
0x??
P W B
?
P W B
?
P W B
?
P W B
?
P
W
?
P
W
?
P
W
?
P
W
?
0x??
P W B
?
P W B
?
P W B
?
P W B
?
P W B 0x??
2002-08
b7
Reserved, not used
b6
Reserved, not used
V
b5
V
b4
V
Threshold Value, 2.3 V to 4.4 V in
V
b3
BO
~33.33 mV steps.
V
b2
V
b1
V
b0
b7
Reserved, not used
A
b6
Interrupt Polarity, 1 = High, 0 = Low.
C
b5
C
b4
32 kHz RC Oscillator Adjustment,
C
b3
nominal ~330 Hz per step.
C
b2
C
b1
C
b0
R
b7
32.768 kHz Xtal Oscillator fine tune
R
b6
(see notes for use)
R
b5
R
b4
C
b3
Internal R
C
b2
nominal ~330 Hz per step.
C
b1
C
b0
C
b7
Adjustment for internal temperature-
C
b6
compensated Voltage Reference,
C
b5
Factory-Only temperature drift trim.
C
b4
Disconnect Internal R
A
b3
0=connected, 1 = disconnected.
A
b2
DCO setting,
A
b1
most-significant bits 15:17.
A
b0
Bits 7:14 of DCO setting
A
SH3000 User Manual
Preliminary
DESCRIPTION
Adjustment,
REF
,
REF
35
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