Pwm Module; Show Cycle Enable Field Settings; Pwm Address Map - Motorola M-CORE MMC2001 Series Reference Manual

SHEN — Show Cycle Enable
These two bits are used to determine what the EIM does with the external bus during
internal transfers (i.e., an access to the internal ROM, RAM or peripherals). When
show cycles are enabled, the internal address and data bus are driven externally. On
reset, show cycles are disabled.
Table C-9 Show Cycle Enable Field Settings
Value
00
01
10
11
C.6 PWM Module
This section describes the registers and control bits in the PWM module. All registers
reset to 0x0000.
These registers must be accessed with halfword accesses. Accesses other than half-
word in size result in undefined activity.
Address
10005000
10005002
10005004
10005006
10005008
1000500A
1000500C
1000500E
10005010
10005012
10005014
10005016
10005018
1000501A
1000501C
1000501E
10005020
10005022
MOTOROLA
C-22
Freescale Semiconductor, Inc.
Show cycles disabled. The external address bus is driven with the last valid
external address, and the data bus values are held by bus keepers.
Show cycles enabled. Internal termination to the CPU during idle cycles caused
by EDC or CSA being set follows normal operation. This means that internal
transfers that occur during EDC/CSA idle cycles will not be visible externally.
Show cycles enabled. Internal termination to the CPU during idle cycles caused
by EDC or CSA being set is delayed by one clock. This ensures that all internal
transfers can be externally monitored, at the expense of performance.
Reserved
Table C-10 PWM Address Map
Use
PWM0 Control Register (PWMCR0)
PWM0 Period Register (PWMPR0)
PWM0 Width Register (PWMWR0)
PWM0 Counter Register (PWMCTR0)
PWM1 Control Register (PWMCR1)
PWM1 Period Register (PWMPR1)
PWM1 Width Register (PWMWR1)
PWM1 Counter Register (PWMCTR1)
PWM2 Control Register (PWMCR2)
PWM2 Period Register (PWMPR2)
PWM2 Width Register (PWMWR2)
PWM2 Counter Register (PWMCTR2)
PWM3 Control Register (PWMCR3)
PWM3 Period Register (PWMPR3)
PWM3 Width Register (PWMWR3)
PWM3 Counter Register (PWMCTR3)
PWM4 Control Register (PWMCR4)
PWM4 Period Register (PWMPR4)
PROGRAMMING REFERENCE
For More Information On This Product,
Go to: www.freescale.com
Meaning
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Supervisor Only
Access
MMC2001
REFERENCE MANUAL