S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 116

• Manufacturer Part Number: S912XET512J3VALR
• Description: 16-bit Microcontrollers - MCU 16 BIT,512K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of S912XET512J3VALR

• Rohs: yes
• Core: HCS12X
• Processor Series: MC9S12XE
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-112
• Mounting Style: SMD/SMT

1. Read: Anytime. In emulation modes, read operations will return the data from the external bus, in all other modes the data source
Chapter 2 Port Integration Module (S12XEPIMV1)
2.3.14
This register is used to select reduced drive for the pins associated with the S12X_EBI ports A, B, C, D,
E, and K. If enabled, the pins drive at approx. 1/5 of the full drive strength.
The reduced drive functionality does not take effect on the pins in emulation modes.
116
Address 0x000D (PRR)
is depending on the data direction value.
Write: Anytime. In emulation modes, write operations will also be directed to the external bus.
RDPK
RDPE
RDPD
RDPC
Field
Reset
6-5
7
4
3
2
W
R
Port K reduced drive—Select reduced drive for outputs
This bit configures the drive strength of all Port K output pins as either full or reduced independent of the function
used on the pins. If a pin is used as input this bit has no effect.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
Reserved—
Port E reduced drive—Select reduced drive for outputs
This bit configures the drive strength of all Port E output pins as either full or reduced independent of the function
used on the pins. If a pin is used as input this bit has no effect.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
Port D reduced drive—Select reduced drive for outputs
This bit configures the drive strength of all output pins as either full or reduced independent of the function used on
the pins. If a pin is used as input this bit has no effect.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
Port C reduced drive—Select reduced drive for outputs
This bit configures the drive strength of all output pins as either full or reduced independent of the function used on
the pins. If a pin is used as input this bit has no effect.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
RDPK
S12X_EBI ports Reduced Drive Register (RDRIV)
0
7
= Unimplemented or Reserved
Figure 2-12. S12X_EBI ports Reduced Drive Register (RDRIV)
0
0
6
Table 2-15. RDRIV Register Field Descriptions
MC9S12XE-Family Reference Manual Rev. 1.25
0
0
5
RDPE
0
4
Description
RDPD
3
0
RDPC
0
2
Access: User read/write
Freescale Semiconductor
RDPB
0
1
RDPA
0
0
(1)