MC68HC705CT4 Datasheet, PDF (50/152 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
Operating Modes
6.3 Single-Chip Mode
In single-chip mode, the address and data buses are not available
externally, but there are three 8-bit input/output (I/O) ports and one 7-bit
I/O port. This mode allows the MCU to function as a self-contained
microcontroller, with maximum use of the pins for on-chip peripheral
functions. All address and data activity occurs within the MCU. Single-
chip mode is entered on the rising edge of RESET if the IRQ/V_PP pin is
within normal operating range.
6
40
PA3 7
1
39 ^PC3
PA2
PC4
PA1
PC5
PA0
PC6
PB0
PC7/PWM
PB1 12
34 ^TCAP
PB2
PD6/TCMP
PB3
PD5/SCK
PB4
PD4/SDIO
PB5
PD3/CMP2–
PB6 17
29 ^PD2/CMP12+
18
23
28
Figure 6-1. Single-Chip Mode Pinout of the MC68HC705CT4
General Release Specification
MC68HC705CT4 — Rev. 2.0
50
Operating Modes
MOTOROLA
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