MPC8313ECZQADDC Freescale Semiconductor, MPC8313ECZQADDC Datasheet - Page 1116

Manufacturer Part Number

MPC8313ECZQADDC

Microprocessors - MPU 8313 REV2.2 PB ENC EXT

Manufacturer

Freescale Semiconductor

Processor Series

Data Bus Width

Maximum Clock Frequency

Program Memory Size

Data Ram Size

Interface Type

Mounting Style

Package / Case

Number Of Programmable I/os

Number Of Timers

To get the percent error value, the following three steps are taken:

The UIER gives the user the ability to mask specific UART interrupts to the programmable interrupt

controller (PIC).

1. The input clock frequency (ICF) is divided by the actual frequency input (AFI) to get the correct

2. The divisor value is subtracted from 1.

3. The result from the step two is multiplied by 100 to calculate the final percent error. The result is

divisor value (ICF/AFI, where AFI = baud rate × 16 × divisor).

calculated in absolute value (no negative numbers).

These steps can be described with the following equation:

Percent error value = (1 – AFI/ICF) × 100

shows the bits in the UIER.

Offset: 0x0_4501, 0x0_4601

Interrupt Enable Registers (UIER1 and UIER2)

MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2

Figure 18-6. Interrupt Enable Registers (UIER1 and UIER2)

Table 18-8. Baud Rate Examples (continued)

(System Clock)

Percent Error

Access: User read/write

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