mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 15
mc68hc908jb16
Manufacturer Part Number
mc68hc908jb16
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908JB16.pdf
(332 pages)
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MC68HC908JB16
Freescale Semiconductor
—
Rev. 1.1
12.8.1
12.8.2
12.9
12.9.1
12.9.2
12.9.3
12.9.4
12.9.5
12.9.6
12.9.7
13.1
13.2
13.3
13.3.1
13.3.2
13.3.3
13.3.4
13.3.5
13.3.6
13.3.7
13.4
13.4.1
13.4.2
13.4.3
13.4.4
13.4.5
13.5
13.6
13.7
13.8
13.9
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
CGMOUT External Connections. . . . . . . . . . . . . . . . . . . . . . . 254
CGM I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .249
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
CGMXFC External Connections . . . . . . . . . . . . . . . . . . . . . . . 253
Calculation of VCO Frequency . . . . . . . . . . . . . . . . . . . . . . . . 254
Programming the PLL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Section 13. Clock Generator Module (CGM)
TxD (Transmit Data). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
RxD (Receive Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
SCI Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
SCI Status Register 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
SCI Status Register 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
SCI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . .244
Reference Frequency Source (OSCXCLK) . . . . . . . . . . . . 250
Voltage Controlled Oscillator . . . . . . . . . . . . . . . . . . . . . . .250
Reference Divider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
VCO Frequency Divider . . . . . . . . . . . . . . . . . . . . . . . . . . .251
Phase Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251
Phase Detector Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Lock Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
CGM Power Supply Pins (V
CGM1 Voltage Regulator Out (V
CGM2 Voltage Regulator In (V
External Filter Capacitor Pins (CGMXFC1, CGMXFC2) . . 253
CGM Clock Output Pins (CGMOUT1, CGMOUT2) . . . . . . 253
Table of Contents
DDA
REGA1
, V
REGA0
SSA0
) . . . . . . . . . . . . . . . . 252
). . . . . . . . . . . . . . . 252
, V
SSA1
) . . . . . . . . 252
Table of Contents
Technical Data
15
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