MC56F8346 Datasheet, PDF (105/160 Pages) Motorola, Inc – 56F8346 16-bit Hybrid Controller

Freescale Semiconductor, Inc.
Register Descriptions
6.5.7.1 Reserved—Bits 15–10
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.7.2 Alternate GPIO_B Peripheral Function Select for A23 (A23)—Bit 9
• 0 = Peripheral output function of GPIO B[7] is defined to be A[23]
• 1 = Peripheral output function of GPIO B[7] is defined to be the oscillator clock (MSTR_OSC, see
Figure 3-4)
6.5.7.3 Alternate GPIO_B Peripheral Function Select for A22 (A22)—Bit 8
• 0 = Peripheral output function of GPIO B[6] is defined to be A[22]
• 1 = Peripheral output function of GPIO B[6] is defined to be SYS_CLK2
6.5.7.4 Alternate GPIO_B Peripheral Function Select for A21 (A21)—Bit 7
• 0 = Peripheral output function of GPIO B[5] is defined to be A[21]
• 1 = Peripheral output function of GPIO B[5] is defined to be SYS_CLK
6.5.7.5 Alternate GPIO_B Peripheral Function Select for A20 (A20)—Bit 6
• 0 = Peripheral output function of GPIO B[4] is defined to be A[20]
• 1 = Peripheral output function of GPIO B[4] is defined to be the prescaler clock (FREF, see
Figure 3-4)
6.5.7.6 Clockout Disable (CLKDIS)—Bit 5
• 0 = CLKOUT output is enabled and will output the signal indicated by CLKOSEL
• 1 = CLKOUT is tri-stated
6.5.7.7 CLockout Select (CLKOSEL)—Bits 4–0
Selects clock to be muxed out on the CLKO pin.
• 00000 = SYS_CLK (from OCCS - DEFAULT)
• 00001 = Reserved for factory test—56800E clock
• 00010 = Reserved for factory test—XRAM clock
• 00011 = Reserved for factory test—PFLASH odd clock
• 00100 = Reserved for factory test—PFLASH even clock
• 00101 = Reserved for factory test—BFLASH clock
• 00110 = Reserved for factory test—DFLASH clock
• 00111 = Oscillator output
• 01000 = F_out (from OCCS)
• 01001 = Reserved for factory test—IPB clock
• 01010 = Reserved for factory test—Feedback (from OCCS, this is path to PLL)
• 01011 = Reserved for factory test—Prescaler clock (from OCCS)
• 01100 = Reserved for factory test—Postscaler clock (from OCCS)
• 01101 = Reserved for factory test—SYS_CLK2 (from OCCS)
• 01110 = Reserved for factory test—SYS_CLK_DIV2
• 01111 = Reserved for factory test—SYS_CLK_D
• 10000 = ADCA clock
• 10001 = ADCB clock
56F8346 Technical Data
105
Preliminary
For More Information On This Product,
Go to: www.freescale.com