MC68HC16Z1CPV25 Freescale Semiconductor, MC68HC16Z1CPV25 Datasheet - Page 434

• Manufacturer Part Number: MC68HC16Z1CPV25
• Description: IC MPU 1K RAM 25MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CPV25

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: Q1141110

D.7.10 SCI Control Register 1
SCCR1A — SCIA Control Register 1
SCCR1B — SCIB Control Register 1
D-60
RESET:
USED
NOT
15
where SCBR[12:0] is in the range of one to 8191. Writing a value of zero to SCBR dis-
ables the baud rate generator. There are 8191 different baud rates available. The
baud value depends on the value for SCBR and the system clock, as used in the equa-
tion above.
maximum baud rate with this system clock speed is 524 kbaud.
SCCR1 contains SCI configuration parameters, including transmitter and receiver en-
able bits, interrupt enable bits, and operating mode enable bits. SCCR0 can be read
or written at any time. The SCI can modify the RWU bit under certain circumstances.
Changing the value of SCCR1 bits during a transfer operation can disrupt the transfer.
LOOPS
14
0
WOMS
Table D-41
13
0
Baud Rate
500,00.00
38,400.00
32,768.00
19,200.00
Nominal
9,600.00
4,800.00
2,400.00
1,200.00
ILT
12
600.00
300.00
110.00
0
64.00
Table D-41 Examples of SCI Baud Rates
Freescale Semiconductor, Inc.
For More Information On This Product,
SCBR[12:0]
PT
11
shows possible baud rates for a 16.78-MHz system clock. The
0
SCI Baud Rate
PE
10
0
Go to: www.freescale.com
Baud Rate
524,288.00
37,449.14
32,768.00
19,418.07
9,532.51
4,809.98
2,404.99
1,199.74
REGISTER SUMMARY
Actual
599.87
299.94
110.01
64.00
M
9
0
=
-------------------------------------------------------------------------- -
32 SCI Baud Rate Desired
WAKE
8
0
Percent Error
=
or
TIE
------------------------------------------- -
32 SCBR[12:0]
7
0
–2.48
–0.70
–0.02
–0.02
–0.02
4.86
0.00
1.14
0.21
0.21
0.01
0.01
TCIE
f
6
0
sys
f
sys
Value of SCBR
RIE
5
0
1,748
4,766
8,191
109
218
437
874
14
16
27
55
1
ILIE
4
0
TE
3
0
M68HC16 Z SERIES
USER’S MANUAL
RE
2
0
$YFFC1A
$YFFC2A
RWU
1
0
SBK
0
0