XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 162

• Manufacturer Part Number: XC68HC12A0CPV8
• Description: IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
• Manufacturer: Freescale Semiconductor

Specifications of XC68HC12A0CPV8

• Controller Family/series: 68HC12
• No. Of I/o's: 68
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Core Size: 16 Bit
• Program Memory Size: 60KB
• Peripherals: ADC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Clock Functions
11.7 System Clock Frequency formulas
11.8 Clock Divider Chains
Technical Data
162
NOTE:
See
SLWCLK = EXTALi / ( 2 x SLOW )
SLWCLK = EXTALi
PLLCLK = 2 x EXTALi x (SYNR + 1) / (REFDV + 1)
ECLK = SYSCLK / 2
XCLK = SLWCLK / 2
PCLK = SYSCLK / 2
BCLK
Boolean equations:
SYSCLK = (BCSP & PLLCLK) | (BCSP & BCSS & EXTALi) | (BCSP &
BCSS & SLWCLK)
MCLK = (PCLK & MCS) | (XCLK & MCS)
MSCAN system = (EXTALi & CLKSRC) | (SYSCLK & CLKSRC)
BDM system = (BCLK & CLKSW) | (ECLK & CLKSW)
During limp-home mode PCLK, ECLK, BCLK, MCLK and XCLK are
supplied by VCO (PLLCLK).
Figure
clock divider chains for the various peripherals on the
MC68HC912D60A.
1. If SYSCLK is slower than EXTALi (BCSS=1, BCSP=0, SLOW>0), BCLK becomes ECLK.
Figure
(1)
11-6,
= EXTALi / 2
11-6:
Figure
Clock Functions
11-7,
Figure
11-8, and
Figure 11-9
MC68HC912D60A — Rev. 3.1
SLOW = 1,2,..63
SLOW = 0
Freescale Semiconductor
summarize the