Compatible Systems RISC 2800i Uživatelský manuál stáhnout pdf (Strana 19)

MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4

Freescale Semiconductor 19

Electrical and Thermal Characteristics

Figure 4 provides the AC test load for the MPC7448.

Figure 4. AC Test Load

Figure 5 provides the BMODE[0:1] input timing diagram for the MPC7448. These mode select inputs are

sampled once before and once after HRESET negation.

Figure 5. BMODE[0:1] Input Sample Timing Diagram

Output

= 50 Ω

HRESET

BMODE[0:1]

= Midpoint Voltage (OV

/2)

SYSCLK

1st Sample

2nd Sample

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 59 60

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Compatible Systems RISC 2800i Uživatelský manuál Strana 19