Reset
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
4-13
4.4.3.4
PLLCFG[0:1] Pins
The PLLCFG pins are explained in
Section 11.1.4, “FMPLL Modes of Operation
.”
Refer to
Chapter 2, “Signal Description
” for information about the PLLCFG pins.
4.4.3.5
Reset Configuration Halfword
4.4.3.5.1
Reset Configuration Halfword Definition
The RCHW is read from either external memory or internal flash memory. If a valid RCHW is not found,
a CAN/SCI boot is initiated. The RCHW is a collection of control bits that specify a minimum MCU
configuration after reset and define the desired mode of operation of the BAM program. At reset the
RCHW provides a means to locate the boot code, determines if flash memory is programmed or erased,
enables or disables the watchdog timer, configures the MMU to boot as either classic Power Architecture
Book E code or as Freescale VLE code, and if booting externally, sets the bus size. Refer to the register
indicated in RCHW bit descriptions for a description of each control bit.
NOTE
Do not configure the RCHW to a 32-bit bus size for devices with only a
16-bit data bus.
If booting from internal flash or external memory, the application must ensure that RCHW is the correct
value for the configuration, and that it resides in that memory location. The boot ID of the RCHW must
read 0x5A. BOOT_BLOCK_ADDRESS is explained in
Section 15.3.2.2.4, “Read the Reset
.”
The fields of the RCHW are shown in
.
Figure 4-3. RCHW Fields
Table 4-7. Configurations using PLLCFG[0:1] and RSTCFG
RSTCFG
PLLCFG0
PLLCFG1
Clock Mode
MODE
PLLSEL
PLLREF
1
PLLCFG pins ignored
Crystal reference (default)
1
1
1
0
0
0
Bypass mode
0
0
0
0
0
1
External reference
1
1
0
0
1
0
Crystal reference
1
1
1
0
1
1
Dual controller mode
1
0
0
BOOT_BLOCK_A 0x0000_0000
Boot Identifier = 0x5A
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WTE
PS0
VLE
0
1
0
1
1
0
1
0
5
A
Summary of Contents for MPC5565
Page 18: ...MPC5565 Microcontroller Reference Manual Devices Supported MPC5565 MPC5565 RM Rev 1 0 09 2007...
Page 34: ...MPC5565 Reference Manual Rev 1 0 Freescale Semiconductor 15...
Page 35: ...MPC5565 Reference Manual Rev 1 0 16 Freescale Semiconductor...
Page 553: ...Flash Memory MPC5565 Microcontroller Reference Manual Rev 1 0 13 38 Freescale Semiconductor...
Page 559: ...SRAM MPC5565 Microcontroller Reference Manual Rev 1 0 14 6 Freescale Semiconductor...
Page 973: ...Preface MPC5565 Microcontroller Reference Manual Rev 1 0 21 36 Freescale Semiconductor...
Page 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...